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Added support for maven toolchains #24

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Jul 19, 2014
Merged

Added support for maven toolchains #24

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50 changes: 42 additions & 8 deletions ...lambda-maven-plugin/src/main/java/net/orfjackal/retrolambda/maven/ProcessClassesMojo.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,14 +7,34 @@
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableMap;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.*;
import org.apache.maven.plugins.annotations.*;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.BuildPluginManager;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;

import java.io.*;
import java.util.*;

import static org.twdata.maven.mojoexecutor.MojoExecutor.*;
import org.apache.maven.toolchain.Toolchain;
import org.apache.maven.toolchain.ToolchainManager;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import java.util.Properties;
import java.util.TreeSet;

import static org.twdata.maven.mojoexecutor.MojoExecutor.artifactId;
import static org.twdata.maven.mojoexecutor.MojoExecutor.attribute;
import static org.twdata.maven.mojoexecutor.MojoExecutor.attributes;
import static org.twdata.maven.mojoexecutor.MojoExecutor.configuration;
import static org.twdata.maven.mojoexecutor.MojoExecutor.element;
import static org.twdata.maven.mojoexecutor.MojoExecutor.executeMojo;
import static org.twdata.maven.mojoexecutor.MojoExecutor.executionEnvironment;
import static org.twdata.maven.mojoexecutor.MojoExecutor.goal;
import static org.twdata.maven.mojoexecutor.MojoExecutor.groupId;
import static org.twdata.maven.mojoexecutor.MojoExecutor.name;
import static org.twdata.maven.mojoexecutor.MojoExecutor.plugin;
import static org.twdata.maven.mojoexecutor.MojoExecutor.version;

abstract class ProcessClassesMojo extends AbstractMojo {

Expand All @@ -25,6 +45,9 @@ abstract class ProcessClassesMojo extends AbstractMojo {
"1.8", 52
);

@Component
private ToolchainManager toolchainManager;

@Component
private MavenSession session;

Expand Down Expand Up @@ -73,6 +96,17 @@ public void execute() throws MojoExecutionException {
processClasses();
}

private String getJavaCommandViaToolChain() {
Toolchain tc = toolchainManager.getToolchainFromBuildContext( "jdk", session);
if (tc != null) {
getLog().info("Using JDK Toolchain: " + tc );
String javaCommand = tc.findTool("java");
return javaCommand;
} else {
return java8home + "/bin/java";
}
}

private void validateTarget() throws MojoExecutionException {
if (!targetBytecodeVersions.containsKey(target)) {
String possibleValues = Joiner.on(", ").join(new TreeSet<String>(targetBytecodeVersions.keySet()));
Expand Down Expand Up @@ -120,7 +154,7 @@ private void processClasses() throws MojoExecutionException {
attribute("refid", getClasspathId()))),
element("exec",
attributes(
attribute("executable", java8home + "/bin/java"),
attribute("executable", getJavaCommandViaToolChain()),
attribute("failonerror", "true")),
element("arg", attribute("value", "-Dretrolambda.bytecodeVersion=" + targetBytecodeVersions.get(target))),
element("arg", attribute("value", "-Dretrolambda.inputDir=" + getInputDir().getAbsolutePath())),
Expand Down