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Add some tests for PropertiesLauncher
This commit is contained in:
Dave Syer
parent
f83fd47184
commit
053c072155
@ -12,6 +12,17 @@
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<properties>
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<main.basedir>${basedir}/../..</main.basedir>
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</properties>
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<dependencies>
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<!-- TODO: maybe put these in the parent? -->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>jcl-over-slf4j</artifactId>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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@ -149,6 +149,7 @@ public class PropertiesLauncher extends Launcher {
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}
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protected void initialize() throws Exception {
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String config = SystemPropertyUtils.resolvePlaceholders(System.getProperty(
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CONFIG_NAME, "application")) + ".properties";
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while (config.startsWith("/")) {
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@ -219,7 +220,7 @@ public class PropertiesLauncher extends Launcher {
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path = this.properties.getProperty(PATH);
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}
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if (path != null) {
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path = SystemPropertyUtils.resolvePlaceholders(path, true);
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path = SystemPropertyUtils.resolvePlaceholders(path);
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this.paths = new ArrayList<String>(Arrays.asList(path.split(",")));
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for (int i = 0; i < this.paths.size(); i++) {
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this.paths.set(i, this.paths.get(i).trim());
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@ -234,13 +235,20 @@ public class PropertiesLauncher extends Launcher {
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this.logger.info("Not found: " + config);
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}
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for (int i = 0; i < this.paths.size(); i++) {
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if (!this.paths.get(i).endsWith("/")) {
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// Always a directory
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this.paths.set(i, this.paths.get(i) + "/");
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}
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if (this.paths.get(i).startsWith("./")) {
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// No need for current dir path
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this.paths.set(i, this.paths.get(i).substring(2));
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}
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}
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for (Iterator<String> iter = this.paths.iterator(); iter.hasNext();) {
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String path = iter.next();
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if (path.equals(".") || path.equals("")) {
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// Empty path is always on the classpath so no need for it to be
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// explicitly listed here
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iter.remove();
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}
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}
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@ -278,12 +286,11 @@ public class PropertiesLauncher extends Launcher {
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@Override
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protected String getMainClass(Archive archive) throws Exception {
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if (System.getProperty(MAIN) != null) {
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return SystemPropertyUtils
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.resolvePlaceholders(System.getProperty(MAIN), true);
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return SystemPropertyUtils.resolvePlaceholders(System.getProperty(MAIN));
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}
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if (this.properties.containsKey(MAIN)) {
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return SystemPropertyUtils.resolvePlaceholders(
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this.properties.getProperty(MAIN), true);
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return SystemPropertyUtils.resolvePlaceholders(this.properties
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.getProperty(MAIN));
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}
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return super.getMainClass(archive);
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}
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@ -1,253 +0,0 @@
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/*
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* Copyright 2012-2013 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.boot.loader.util;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Properties;
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import java.util.Set;
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/**
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* Utility class for working with Strings that have placeholder values in them. A
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* placeholder takes the form {@code $ name} . Using {@code PropertyPlaceholderHelper}
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* these placeholders can be substituted for user-supplied values.
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* <p>
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* Values for substitution can be supplied using a {@link Properties} instance or using a
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* {@link PlaceholderResolver}.
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*
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* @author Juergen Hoeller
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* @author Rob Harrop
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* @since 3.0
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*/
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public class PropertyPlaceholderHelper {
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private static final Map<String, String> wellKnownSimplePrefixes = new HashMap<String, String>(
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4);
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static {
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wellKnownSimplePrefixes.put("}", "{");
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wellKnownSimplePrefixes.put("]", "[");
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wellKnownSimplePrefixes.put(")", "(");
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}
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private final String placeholderPrefix;
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private final String placeholderSuffix;
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private final String simplePrefix;
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private final String valueSeparator;
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private final boolean ignoreUnresolvablePlaceholders;
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/**
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* Creates a new {@code PropertyPlaceholderHelper} that uses the supplied prefix and
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* suffix. Unresolvable placeholders are ignored.
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* @param placeholderPrefix the prefix that denotes the start of a placeholder.
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* @param placeholderSuffix the suffix that denotes the end of a placeholder.
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*/
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public PropertyPlaceholderHelper(String placeholderPrefix, String placeholderSuffix) {
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this(placeholderPrefix, placeholderSuffix, null, true);
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}
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/**
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* Creates a new {@code PropertyPlaceholderHelper} that uses the supplied prefix and
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* suffix.
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* @param placeholderPrefix the prefix that denotes the start of a placeholder
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* @param placeholderSuffix the suffix that denotes the end of a placeholder
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* @param valueSeparator the separating character between the placeholder variable and
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* the associated default value, if any
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* @param ignoreUnresolvablePlaceholders indicates whether unresolvable placeholders
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* should be ignored ({@code true}) or cause an exception ({@code false}).
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*/
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public PropertyPlaceholderHelper(String placeholderPrefix, String placeholderSuffix,
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String valueSeparator, boolean ignoreUnresolvablePlaceholders) {
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Assert.notNull(placeholderPrefix, "placeholderPrefix must not be null");
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Assert.notNull(placeholderSuffix, "placeholderSuffix must not be null");
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this.placeholderPrefix = placeholderPrefix;
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this.placeholderSuffix = placeholderSuffix;
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String simplePrefixForSuffix = wellKnownSimplePrefixes
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.get(this.placeholderSuffix);
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if (simplePrefixForSuffix != null
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&& this.placeholderPrefix.endsWith(simplePrefixForSuffix)) {
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this.simplePrefix = simplePrefixForSuffix;
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}
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else {
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this.simplePrefix = this.placeholderPrefix;
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}
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this.valueSeparator = valueSeparator;
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this.ignoreUnresolvablePlaceholders = ignoreUnresolvablePlaceholders;
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}
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/**
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* Replaces all placeholders of format <code>${name}</code> with the corresponding
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* property from the supplied {@link Properties}.
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* @param value the value containing the placeholders to be replaced.
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* @param properties the {@code Properties} to use for replacement.
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* @return the supplied value with placeholders replaced inline.
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*/
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public String replacePlaceholders(String value, final Properties properties) {
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Assert.notNull(properties, "Argument 'properties' must not be null.");
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return replacePlaceholders(value, new PlaceholderResolver() {
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@Override
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public String resolvePlaceholder(String placeholderName) {
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return properties.getProperty(placeholderName);
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}
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});
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}
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/**
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* Replaces all placeholders of format {@code $ name} with the value returned from the
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* supplied {@link PlaceholderResolver}.
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* @param value the value containing the placeholders to be replaced.
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* @param placeholderResolver the {@code PlaceholderResolver} to use for replacement.
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* @return the supplied value with placeholders replaced inline.
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*/
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public String replacePlaceholders(String value,
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PlaceholderResolver placeholderResolver) {
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Assert.notNull(value, "Argument 'value' must not be null.");
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return parseStringValue(value, placeholderResolver, new HashSet<String>());
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}
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protected String parseStringValue(String strVal,
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PlaceholderResolver placeholderResolver, Set<String> visitedPlaceholders) {
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StringBuilder buf = new StringBuilder(strVal);
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int startIndex = strVal.indexOf(this.placeholderPrefix);
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while (startIndex != -1) {
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int endIndex = findPlaceholderEndIndex(buf, startIndex);
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if (endIndex != -1) {
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String placeholder = buf.substring(
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startIndex + this.placeholderPrefix.length(), endIndex);
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String originalPlaceholder = placeholder;
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if (!visitedPlaceholders.add(originalPlaceholder)) {
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throw new IllegalArgumentException("Circular placeholder reference '"
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+ originalPlaceholder + "' in property definitions");
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}
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// Recursive invocation, parsing placeholders contained in the placeholder
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// key.
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placeholder = parseStringValue(placeholder, placeholderResolver,
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visitedPlaceholders);
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// Now obtain the value for the fully resolved key...
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String propVal = placeholderResolver.resolvePlaceholder(placeholder);
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if (propVal == null && this.valueSeparator != null) {
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int separatorIndex = placeholder.indexOf(this.valueSeparator);
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if (separatorIndex != -1) {
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String actualPlaceholder = placeholder.substring(0,
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separatorIndex);
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String defaultValue = placeholder.substring(separatorIndex
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+ this.valueSeparator.length());
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propVal = placeholderResolver
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.resolvePlaceholder(actualPlaceholder);
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if (propVal == null) {
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propVal = defaultValue;
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}
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}
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}
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if (propVal != null) {
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// Recursive invocation, parsing placeholders contained in the
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// previously resolved placeholder value.
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propVal = parseStringValue(propVal, placeholderResolver,
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visitedPlaceholders);
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buf.replace(startIndex, endIndex + this.placeholderSuffix.length(),
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propVal);
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startIndex = buf.indexOf(this.placeholderPrefix,
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startIndex + propVal.length());
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}
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else if (this.ignoreUnresolvablePlaceholders) {
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// Proceed with unprocessed value.
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startIndex = buf.indexOf(this.placeholderPrefix, endIndex
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+ this.placeholderSuffix.length());
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}
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else {
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throw new IllegalArgumentException("Could not resolve placeholder '"
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+ placeholder + "'" + " in string value \"" + strVal + "\"");
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}
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visitedPlaceholders.remove(originalPlaceholder);
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}
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else {
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startIndex = -1;
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}
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}
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return buf.toString();
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}
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private int findPlaceholderEndIndex(CharSequence buf, int startIndex) {
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int index = startIndex + this.placeholderPrefix.length();
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int withinNestedPlaceholder = 0;
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while (index < buf.length()) {
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if (substringMatch(buf, index, this.placeholderSuffix)) {
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if (withinNestedPlaceholder > 0) {
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withinNestedPlaceholder--;
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index = index + this.placeholderSuffix.length();
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}
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else {
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return index;
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}
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}
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else if (substringMatch(buf, index, this.simplePrefix)) {
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withinNestedPlaceholder++;
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index = index + this.simplePrefix.length();
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}
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else {
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index++;
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}
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}
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return -1;
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}
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/**
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* Strategy interface used to resolve replacement values for placeholders contained in
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* Strings.
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* @see PropertyPlaceholderHelper
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*/
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public static interface PlaceholderResolver {
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/**
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* Resolves the supplied placeholder name into the replacement value.
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* @param placeholderName the name of the placeholder to resolve
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* @return the replacement value or {@code null} if no replacement is to be made
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*/
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String resolvePlaceholder(String placeholderName);
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}
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public static boolean substringMatch(CharSequence str, int index,
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CharSequence substring) {
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for (int j = 0; j < substring.length(); j++) {
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int i = index + j;
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if (i >= str.length() || str.charAt(i) != substring.charAt(j)) {
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return false;
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}
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}
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return true;
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}
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public static class Assert {
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public static void notNull(Object target, String message) {
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if (target == null) {
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throw new IllegalStateException(message);
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}
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}
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}
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}
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@ -16,22 +16,27 @@
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package org.springframework.boot.loader.util;
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import org.springframework.boot.loader.util.PropertyPlaceholderHelper.PlaceholderResolver;
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import java.util.HashSet;
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import java.util.Set;
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import org.springframework.util.PropertyPlaceholderHelper.PlaceholderResolver;
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/**
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* Helper class for resolving placeholders in texts. Usually applied to file paths.
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*
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* <p>
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* A text may contain {@code $ ...}} placeholders, to be resolved as system properties:
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* e.g. {@code $ user.dir}}. Default values can be supplied using the ":" separator
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* A text may contain {@code $ ...} placeholders, to be resolved as system properties:
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* e.g. {@code $ user.dir} . Default values can be supplied using the ":" separator
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* between key and value.
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*
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* <p>
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*
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* Adapted from Spring.
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*
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* @author Juergen Hoeller
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* @author Rob Harrop
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* @author Dave Syer
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* @since 1.2.5
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* @see #PLACEHOLDER_PREFIX
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* @see #PLACEHOLDER_SUFFIX
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*
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* @see System#getProperty(String)
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*/
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public abstract class SystemPropertyUtils {
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@ -45,11 +50,7 @@ public abstract class SystemPropertyUtils {
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/** Value separator for system property placeholders: ":" */
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public static final String VALUE_SEPARATOR = ":";
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private static final PropertyPlaceholderHelper strictHelper = new PropertyPlaceholderHelper(
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PLACEHOLDER_PREFIX, PLACEHOLDER_SUFFIX, VALUE_SEPARATOR, false);
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private static final PropertyPlaceholderHelper nonStrictHelper = new PropertyPlaceholderHelper(
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PLACEHOLDER_PREFIX, PLACEHOLDER_SUFFIX, VALUE_SEPARATOR, true);
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private static final PropertyPlaceholderHelper helper = new PropertyPlaceholderHelper();
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/**
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* Resolve ${...} placeholders in the given text, replacing them with corresponding
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@ -61,40 +62,86 @@ public abstract class SystemPropertyUtils {
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* @throws IllegalArgumentException if there is an unresolvable placeholder
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*/
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public static String resolvePlaceholders(String text) {
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return resolvePlaceholders(text, false);
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return helper.replacePlaceholders(text);
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}
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/**
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* Resolve ${...} placeholders in the given text, replacing them with corresponding
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* system property values. Unresolvable placeholders with no default value are ignored
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* and passed through unchanged if the flag is set to true.
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* @param text the String to resolve
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* @param ignoreUnresolvablePlaceholders flag to determine is unresolved placeholders
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* are ignored
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* @return the resolved String
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* @see #PLACEHOLDER_PREFIX
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* @see #PLACEHOLDER_SUFFIX
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* @throws IllegalArgumentException if there is an unresolvable placeholder and the
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* flag is false
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*/
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public static String resolvePlaceholders(String text,
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boolean ignoreUnresolvablePlaceholders) {
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PropertyPlaceholderHelper helper = (ignoreUnresolvablePlaceholders ? nonStrictHelper
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: strictHelper);
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return helper.replacePlaceholders(text, new SystemPropertyPlaceholderResolver(
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text));
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}
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static protected class PropertyPlaceholderHelper {
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private static class SystemPropertyPlaceholderResolver implements PlaceholderResolver {
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private static final String simplePrefix = PLACEHOLDER_PREFIX.substring(1);
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private final String text;
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public SystemPropertyPlaceholderResolver(String text) {
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this.text = text;
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/**
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* Replaces all placeholders of format {@code $ name} with the value returned from
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* the supplied {@link PlaceholderResolver}.
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* @param value the value containing the placeholders to be replaced.
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* @return the supplied value with placeholders replaced inline.
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*/
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public String replacePlaceholders(String value) {
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Assert.notNull(value, "Argument 'value' must not be null.");
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return parseStringValue(value, value, new HashSet<String>());
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}
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@Override
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public String resolvePlaceholder(String placeholderName) {
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private String parseStringValue(String value, String current,
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Set<String> visitedPlaceholders) {
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StringBuilder buf = new StringBuilder(current);
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int startIndex = current.indexOf(PLACEHOLDER_PREFIX);
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while (startIndex != -1) {
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int endIndex = findPlaceholderEndIndex(buf, startIndex);
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if (endIndex != -1) {
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String placeholder = buf.substring(
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startIndex + PLACEHOLDER_PREFIX.length(), endIndex);
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String originalPlaceholder = placeholder;
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if (!visitedPlaceholders.add(originalPlaceholder)) {
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throw new IllegalArgumentException(
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"Circular placeholder reference '" + originalPlaceholder
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+ "' in property definitions");
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}
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// Recursive invocation, parsing placeholders contained in the
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// placeholder
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// key.
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placeholder = parseStringValue(value, placeholder,
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visitedPlaceholders);
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// Now obtain the value for the fully resolved key...
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String propVal = resolvePlaceholder(value, placeholder);
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if (propVal == null && VALUE_SEPARATOR != null) {
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int separatorIndex = placeholder.indexOf(VALUE_SEPARATOR);
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if (separatorIndex != -1) {
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String actualPlaceholder = placeholder.substring(0,
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separatorIndex);
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String defaultValue = placeholder.substring(separatorIndex
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+ VALUE_SEPARATOR.length());
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propVal = resolvePlaceholder(value, actualPlaceholder);
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if (propVal == null) {
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propVal = defaultValue;
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}
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}
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}
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if (propVal != null) {
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// Recursive invocation, parsing placeholders contained in the
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// previously resolved placeholder value.
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propVal = parseStringValue(value, propVal, visitedPlaceholders);
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buf.replace(startIndex, endIndex + PLACEHOLDER_SUFFIX.length(),
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propVal);
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startIndex = buf.indexOf(PLACEHOLDER_PREFIX,
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startIndex + propVal.length());
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}
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else {
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// Proceed with unprocessed value.
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startIndex = buf.indexOf(PLACEHOLDER_PREFIX, endIndex
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+ PLACEHOLDER_SUFFIX.length());
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}
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visitedPlaceholders.remove(originalPlaceholder);
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}
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else {
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startIndex = -1;
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}
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}
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||||
|
||||
return buf.toString();
|
||||
}
|
||||
|
||||
private String resolvePlaceholder(String text, String placeholderName) {
|
||||
try {
|
||||
String propVal = System.getProperty(placeholderName);
|
||||
if (propVal == null) {
|
||||
@ -105,10 +152,57 @@ public abstract class SystemPropertyUtils {
|
||||
}
|
||||
catch (Throwable ex) {
|
||||
System.err.println("Could not resolve placeholder '" + placeholderName
|
||||
+ "' in [" + this.text + "] as system property: " + ex);
|
||||
+ "' in [" + text + "] as system property: " + ex);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
private int findPlaceholderEndIndex(CharSequence buf, int startIndex) {
|
||||
int index = startIndex + PLACEHOLDER_PREFIX.length();
|
||||
int withinNestedPlaceholder = 0;
|
||||
while (index < buf.length()) {
|
||||
if (substringMatch(buf, index, PLACEHOLDER_SUFFIX)) {
|
||||
if (withinNestedPlaceholder > 0) {
|
||||
withinNestedPlaceholder--;
|
||||
index = index + PLACEHOLDER_SUFFIX.length();
|
||||
}
|
||||
else {
|
||||
return index;
|
||||
}
|
||||
}
|
||||
else if (substringMatch(buf, index,
|
||||
PropertyPlaceholderHelper.simplePrefix)) {
|
||||
withinNestedPlaceholder++;
|
||||
index = index + PropertyPlaceholderHelper.simplePrefix.length();
|
||||
}
|
||||
else {
|
||||
index++;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
private static boolean substringMatch(CharSequence str, int index,
|
||||
CharSequence substring) {
|
||||
for (int j = 0; j < substring.length(); j++) {
|
||||
int i = index + j;
|
||||
if (i >= str.length() || str.charAt(i) != substring.charAt(j)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
private static class Assert {
|
||||
|
||||
public static void notNull(Object target, String message) {
|
||||
if (target == null) {
|
||||
throw new IllegalStateException(message);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -0,0 +1,68 @@
|
||||
/*
|
||||
* Copyright 2012-2013 the original author or authors.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.springframework.boot.loader;
|
||||
|
||||
import org.junit.After;
|
||||
import org.junit.Test;
|
||||
import org.springframework.test.util.ReflectionTestUtils;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
/**
|
||||
* @author Dave Syer
|
||||
*/
|
||||
public class PropertiesLauncherTests {
|
||||
|
||||
private PropertiesLauncher launcher = new PropertiesLauncher();
|
||||
|
||||
@After
|
||||
public void close() {
|
||||
System.clearProperty("loader.home");
|
||||
System.clearProperty("loader.path");
|
||||
System.clearProperty("loader.main");
|
||||
System.clearProperty("loader.config.name");
|
||||
System.clearProperty("loader.config.location");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testDefaultHome() {
|
||||
assertEquals(System.getProperty("user.dir"), this.launcher.getHomeDirectory());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testUserSpecifiedMain() throws Exception {
|
||||
this.launcher.initialize();
|
||||
assertEquals("demo.Application", this.launcher.getMainClass(null));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testUserSpecifiedConfigName() throws Exception {
|
||||
System.setProperty("loader.config.name", "foo");
|
||||
this.launcher.initialize();
|
||||
assertEquals("my.Application", this.launcher.getMainClass(null));
|
||||
assertEquals("[etc/]", ReflectionTestUtils.getField(this.launcher, "paths")
|
||||
.toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testSystemPropertySpecifiedMain() throws Exception {
|
||||
System.setProperty("loader.main", "foo.Bar");
|
||||
this.launcher.initialize();
|
||||
assertEquals("foo.Bar", this.launcher.getMainClass(null));
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,56 @@
|
||||
/*
|
||||
* Copyright 2012-2013 the original author or authors.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.springframework.boot.loader.util;
|
||||
|
||||
import org.junit.AfterClass;
|
||||
import org.junit.BeforeClass;
|
||||
import org.junit.Test;
|
||||
import org.springframework.boot.loader.util.SystemPropertyUtils;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
/**
|
||||
* @author Dave Syer
|
||||
*/
|
||||
public class SystemPropertyUtilsTests {
|
||||
|
||||
@BeforeClass
|
||||
public static void init() {
|
||||
System.setProperty("foo", "bar");
|
||||
}
|
||||
|
||||
@AfterClass
|
||||
public static void close() {
|
||||
System.clearProperty("foo");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testVanillaPlaceholder() {
|
||||
assertEquals("bar", SystemPropertyUtils.resolvePlaceholders("${foo}"));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testDefaultValue() {
|
||||
assertEquals("foo", SystemPropertyUtils.resolvePlaceholders("${bar:foo}"));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testNestedPlaceholder() {
|
||||
assertEquals("foo", SystemPropertyUtils.resolvePlaceholders("${bar:${spam:foo}}"));
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,2 @@
|
||||
loader.main: demo.Application
|
||||
loader.path: etc/,lib,.
|
||||
@ -0,0 +1,2 @@
|
||||
loader.main: my.Application
|
||||
loader.path: etc
|
||||
Loading…
Reference in New Issue
Block a user