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AbstractJavaCompileSpecFactory.java
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/
AbstractJavaCompileSpecFactory.java
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/*
* Copyright 2014 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;
import org.gradle.api.tasks.compile.CompileOptions;
import org.gradle.internal.Factory;
import org.gradle.internal.jvm.Jvm;
import org.gradle.jvm.toolchain.JavaInstallationMetadata;
import org.gradle.jvm.toolchain.internal.JavaExecutableUtils;
import javax.annotation.Nullable;
import java.io.File;
public abstract class AbstractJavaCompileSpecFactory<T extends JavaCompileSpec> implements Factory<T> {
private final CompileOptions compileOptions;
private final JavaInstallationMetadata toolchain;
public AbstractJavaCompileSpecFactory(CompileOptions compileOptions, @Nullable JavaInstallationMetadata toolchain) {
this.compileOptions = compileOptions;
this.toolchain = toolchain;
}
@Override
public T create() {
if (toolchain != null) {
return chooseSpecForToolchain();
}
if (compileOptions.isFork()) {
return chooseSpecFromCompileOptions(Jvm.current().getJavaHome());
}
return getDefaultSpec();
}
private T chooseSpecForToolchain() {
File toolchainJavaHome = toolchain.getInstallationPath().getAsFile();
if (!toolchain.getLanguageVersion().canCompileOrRun(8)) {
return getCommandLineSpec(Jvm.forHome(toolchainJavaHome).getJavacExecutable());
}
if (compileOptions.isFork()) {
return chooseSpecFromCompileOptions(toolchainJavaHome);
}
if (!toolchain.isCurrentJvm()) {
return getForkingSpec(toolchainJavaHome);
}
return getDefaultSpec();
}
private T chooseSpecFromCompileOptions(File fallbackJavaHome) {
File forkJavaHome = compileOptions.getForkOptions().getJavaHome();
if (forkJavaHome != null) {
return getCommandLineSpec(Jvm.forHome(forkJavaHome).getJavacExecutable());
}
String forkExecutable = compileOptions.getForkOptions().getExecutable();
if (forkExecutable != null) {
return getCommandLineSpec(JavaExecutableUtils.resolveExecutable(forkExecutable));
}
return getForkingSpec(fallbackJavaHome);
}
abstract protected T getCommandLineSpec(File executable);
abstract protected T getForkingSpec(File javaHome);
abstract protected T getDefaultSpec();
}