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[bs-76] Implement plugin model for cli support

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* Because Spring is not on the classpath we don't particularly
want to use SpringFactoriesLoader
* Adopted the JDK (>=6) ServiceLoader model instead

[Fixes #48789783]
This commit is contained in:
Dave Syer 2013-05-18 19:54:20 +01:00
parent 8bb968d8f5
commit 09cb2f8436
2 changed files with 15 additions and 15 deletions
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25
spring-bootstrap-cli/src/main/java/org/springframework/bootstrap/cli/compiler/GroovyCompiler.java
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@ -24,6 +24,7 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.ServiceLoader;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.classgen.GeneratorContext;
@ -35,16 +36,14 @@ import org.codehaus.groovy.control.Phases;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.control.customizers.CompilationCustomizer;
import org.codehaus.groovy.control.customizers.ImportCustomizer;
import org.springframework.bootstrap.cli.compiler.autoconfigure.SpringBatchCompilerAutoConfiguration;
import org.springframework.bootstrap.cli.compiler.autoconfigure.SpringBootstrapCompilerAutoConfiguration;
import org.springframework.bootstrap.cli.compiler.autoconfigure.SpringIntegrationCompilerAutoConfiguration;
import org.springframework.bootstrap.cli.compiler.autoconfigure.SpringMvcCompilerAutoConfiguration;
/**
* Compiler for Groovy source files. Primarily a simple Facade for
* {@link GroovyClassLoader#parseClass(File)} with the following additional features:
* <ul>
* <li>{@link CompilerAutoConfiguration} strategies will de applied during compilation</li>
* <li>{@link CompilerAutoConfiguration} strategies will be read from
* <code>META-INF/services/org.springframework.bootstrap.cli.compiler.CompilerAutoConfiguration</code>
* (per the standard java {@link ServiceLoader} contract) and applied during compilation</li>
*
* <li>Multiple classes can be returned if the Groovy source defines more than one Class</li>
*
@ -57,14 +56,6 @@ import org.springframework.bootstrap.cli.compiler.autoconfigure.SpringMvcCompile
*/
public class GroovyCompiler {
// FIXME could be a strategy
private static final CompilerAutoConfiguration[] COMPILER_AUTO_CONFIGURATIONS = {
new SpringBootstrapCompilerAutoConfiguration(),
new SpringMvcCompilerAutoConfiguration(),
new SpringBatchCompilerAutoConfiguration(),
new SpringIntegrationCompilerAutoConfiguration(),
new SpringBootstrapCompilerAutoConfiguration() };
private GroovyCompilerConfiguration configuration;
private ExtendedGroovyClassLoader loader;
@ -146,10 +137,14 @@ public class GroovyCompiler {
throws CompilationFailedException {
ImportCustomizer importCustomizer = new ImportCustomizer();
ServiceLoader<CompilerAutoConfiguration> customizers = ServiceLoader.load(
CompilerAutoConfiguration.class,
GroovyCompiler.class.getClassLoader());
// Early sweep to get dependencies
DependencyCustomizer dependencyCustomizer = new DependencyCustomizer(
GroovyCompiler.this.loader);
for (CompilerAutoConfiguration autoConfiguration : COMPILER_AUTO_CONFIGURATIONS) {
for (CompilerAutoConfiguration autoConfiguration : customizers) {
if (autoConfiguration.matches(classNode)) {
if (GroovyCompiler.this.configuration.isGuessDependencies()) {
autoConfiguration.applyDependencies(dependencyCustomizer);
@ -159,7 +154,7 @@ public class GroovyCompiler {
dependencyCustomizer.call();
// Additional auto configuration
for (CompilerAutoConfiguration autoConfiguration : COMPILER_AUTO_CONFIGURATIONS) {
for (CompilerAutoConfiguration autoConfiguration : customizers) {
if (autoConfiguration.matches(classNode)) {
if (GroovyCompiler.this.configuration.isGuessImports()) {
autoConfiguration.applyImports(importCustomizer);

5
spring-bootstrap-cli/src/main/resources/META-INF/services/org.springframework.bootstrap.cli.compiler.CompilerAutoConfiguration Normal file
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@ -0,0 +1,5 @@
org.springframework.bootstrap.cli.compiler.autoconfigure.SpringBootstrapCompilerAutoConfiguration
org.springframework.bootstrap.cli.compiler.autoconfigure.SpringMvcCompilerAutoConfiguration
org.springframework.bootstrap.cli.compiler.autoconfigure.SpringBatchCompilerAutoConfiguration
org.springframework.bootstrap.cli.compiler.autoconfigure.SpringIntegrationCompilerAutoConfiguration