/*
* Copyright 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.gradle.api.internal.tasks.compile.incremental;
import org.gradle.api.internal.tasks.compile.CleaningJavaCompiler;
import org.gradle.api.internal.tasks.compile.JavaCompileSpec;
import org.gradle.api.internal.tasks.compile.incremental.jar.JarClasspathSnapshot;
import org.gradle.api.internal.tasks.compile.incremental.jar.JarClasspathSnapshotProvider;
import org.gradle.api.internal.tasks.compile.incremental.jar.PreviousCompilation;
import org.gradle.api.internal.tasks.compile.incremental.recomp.RecompilationSpec;
import org.gradle.api.logging.Logger;
import org.gradle.api.logging.Logging;
import org.gradle.api.tasks.WorkResult;
import org.gradle.api.tasks.incremental.IncrementalTaskInputs;
import org.gradle.util.Clock;
class SelectiveCompiler implements org.gradle.language.base.internal.compile.Compiler<JavaCompileSpec> {
private static final Logger LOG = Logging.getLogger(SelectiveCompiler.class);
private final IncrementalTaskInputs inputs;
private final PreviousCompilation previousCompilation;
private final CleaningJavaCompiler cleaningCompiler;
private final RecompilationSpecProvider recompilationSpecProvider;
private final IncrementalCompilationInitializer incrementalCompilationInitilizer;
private final JarClasspathSnapshotProvider jarClasspathSnapshotProvider;
public SelectiveCompiler(IncrementalTaskInputs inputs, PreviousCompilation previousCompilation, CleaningJavaCompiler cleaningCompiler,
RecompilationSpecProvider recompilationSpecProvider, IncrementalCompilationInitializer compilationInitializer, JarClasspathSnapshotProvider jarClasspathSnapshotProvider) {
this.inputs = inputs;
this.previousCompilation = previousCompilation;
this.cleaningCompiler = cleaningCompiler;
this.recompilationSpecProvider = recompilationSpecProvider;
this.incrementalCompilationInitilizer = compilationInitializer;
this.jarClasspathSnapshotProvider = jarClasspathSnapshotProvider;
}
public WorkResult execute(JavaCompileSpec spec) {
Clock clock = new Clock();
JarClasspathSnapshot jarClasspathSnapshot = jarClasspathSnapshotProvider.getJarClasspathSnapshot(spec.getClasspath());
RecompilationSpec recompilationSpec = recompilationSpecProvider.provideRecompilationSpec(inputs, previousCompilation, jarClasspathSnapshot);
if (recompilationSpec.isFullRebuildNeeded()) {
LOG.lifecycle("Full recompilation is required because {}. Analysis took {}.", recompilationSpec.getFullRebuildCause(), clock.getTime());
return cleaningCompiler.execute(spec);
}
incrementalCompilationInitilizer.initializeCompilation(spec, recompilationSpec.getClassNames());
if (spec.getSource().isEmpty()) {
LOG.lifecycle("None of the classes needs to compiled! Analysis took {}. ", clock.getTime());
return new RecompilationNotNecessary();
}
try {
//use the original compiler to avoid cleaning up all the files
return cleaningCompiler.getCompiler().execute(spec);
} finally {
LOG.lifecycle("Incremental compilation of {} classes completed in {}.", recompilationSpec.getClassNames().size(), clock.getTime());
}
}
}