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/*
 * Copyright 2010 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.process.internal;

import com.google.common.collect.Iterables;
import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.FileCollection;
import org.gradle.api.internal.file.FileCollectionFactory;
import org.gradle.api.internal.file.FileResolver;
import org.gradle.initialization.BuildCancellationToken;
import org.gradle.process.CommandLineArgumentProvider;
import org.gradle.process.JavaExecSpec;
import org.gradle.process.JavaForkOptions;
import org.gradle.util.CollectionUtils;
import org.gradle.util.GUtil;

import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executor;

/**
 * Use {@link JavaExecHandleFactory} instead.
 */
public class JavaExecHandleBuilder extends AbstractExecHandleBuilder implements JavaExecSpec {
    private final FileCollectionFactory fileCollectionFactory;
    private String mainClass;
    private final List applicationArgs = new ArrayList();
    private ConfigurableFileCollection classpath;
    private final JavaForkOptions javaOptions;
    private final List argumentProviders = new ArrayList();

    public JavaExecHandleBuilder(FileResolver fileResolver, FileCollectionFactory fileCollectionFactory, Executor executor, BuildCancellationToken buildCancellationToken) {
        super(fileResolver, executor, buildCancellationToken);
        this.fileCollectionFactory = fileCollectionFactory;
        javaOptions = new DefaultJavaForkOptions(fileResolver, fileCollectionFactory);
        executable(javaOptions.getExecutable());
    }

    public List getAllJvmArgs() {
        List allArgs = new ArrayList(javaOptions.getAllJvmArgs());
        if (classpath != null && !classpath.isEmpty()) {
            allArgs.add("-cp");
            allArgs.add(CollectionUtils.join(File.pathSeparator, classpath));
        }
        return allArgs;
    }

    public void setAllJvmArgs(List arguments) {
        throw new UnsupportedOperationException();
    }

    public void setAllJvmArgs(Iterable arguments) {
        throw new UnsupportedOperationException();
    }

    public List getJvmArgs() {
        return javaOptions.getJvmArgs();
    }

    public void setJvmArgs(List arguments) {
        javaOptions.setJvmArgs(arguments);
    }

    public void setJvmArgs(Iterable arguments) {
        javaOptions.setJvmArgs(arguments);
    }

    public JavaExecHandleBuilder jvmArgs(Iterable arguments) {
        javaOptions.jvmArgs(arguments);
        return this;
    }

    public JavaExecHandleBuilder jvmArgs(Object... arguments) {
        javaOptions.jvmArgs(arguments);
        return this;
    }

    public Map getSystemProperties() {
        return javaOptions.getSystemProperties();
    }

    public void setSystemProperties(Map properties) {
        javaOptions.setSystemProperties(properties);
    }

    public JavaExecHandleBuilder systemProperties(Map properties) {
        javaOptions.systemProperties(properties);
        return this;
    }

    public JavaExecHandleBuilder systemProperty(String name, Object value) {
        javaOptions.systemProperty(name, value);
        return this;
    }

    public FileCollection getBootstrapClasspath() {
        return javaOptions.getBootstrapClasspath();
    }

    public void setBootstrapClasspath(FileCollection classpath) {
        javaOptions.setBootstrapClasspath(classpath);
    }

    public JavaForkOptions bootstrapClasspath(Object... classpath) {
        javaOptions.bootstrapClasspath(classpath);
        return this;
    }

    public String getMinHeapSize() {
        return javaOptions.getMinHeapSize();
    }

    public void setMinHeapSize(String heapSize) {
        javaOptions.setMinHeapSize(heapSize);
    }

    public String getDefaultCharacterEncoding() {
        return javaOptions.getDefaultCharacterEncoding();
    }

    public void setDefaultCharacterEncoding(String defaultCharacterEncoding) {
        javaOptions.setDefaultCharacterEncoding(defaultCharacterEncoding);
    }

    public String getMaxHeapSize() {
        return javaOptions.getMaxHeapSize();
    }

    public void setMaxHeapSize(String heapSize) {
        javaOptions.setMaxHeapSize(heapSize);
    }

    public boolean getEnableAssertions() {
        return javaOptions.getEnableAssertions();
    }

    public void setEnableAssertions(boolean enabled) {
        javaOptions.setEnableAssertions(enabled);
    }

    public boolean getDebug() {
        return javaOptions.getDebug();
    }

    public void setDebug(boolean enabled) {
        javaOptions.setDebug(enabled);
    }

    public String getMain() {
        return mainClass;
    }

    public JavaExecHandleBuilder setMain(String mainClassName) {
        this.mainClass = mainClassName;
        return this;
    }

    public List getArgs() {
        List args = new ArrayList();
        for (Object applicationArg : applicationArgs) {
            args.add(applicationArg.toString());
        }
        return args;
    }

    public JavaExecHandleBuilder setArgs(List applicationArgs) {
        this.applicationArgs.clear();
        args(applicationArgs);
        return this;
    }

    public JavaExecHandleBuilder setArgs(Iterable applicationArgs) {
        this.applicationArgs.clear();
        args(applicationArgs);
        return this;
    }

    public JavaExecHandleBuilder args(Object... args) {
        args(Arrays.asList(args));
        return this;
    }

    public JavaExecSpec args(Iterable args) {
        GUtil.addToCollection(applicationArgs, true, args);
        return this;
    }

    @Override
    public List getArgumentProviders() {
        return argumentProviders;
    }

    public JavaExecHandleBuilder setClasspath(FileCollection classpath) {
        ConfigurableFileCollection newClasspath = fileCollectionFactory.configurableFiles("classpath");
        newClasspath.setFrom(classpath);
        this.classpath = newClasspath;
        return this;
    }

    public JavaExecHandleBuilder classpath(Object... paths) {
        doGetClasspath().from(paths);
        return this;
    }

    public FileCollection getClasspath() {
        return doGetClasspath();
    }

    private ConfigurableFileCollection doGetClasspath() {
        if (classpath == null) {
            classpath = fileCollectionFactory.configurableFiles("classpath");
        }
        return classpath;
    }

    @Override
    public List getAllArguments() {
        List arguments = new ArrayList(getAllJvmArgs());
        arguments.add(mainClass);
        arguments.addAll(getArgs());
        for (CommandLineArgumentProvider argumentProvider : argumentProviders) {
            Iterables.addAll(arguments, argumentProvider.asArguments());
        }
        return arguments;
    }

    public JavaForkOptions copyTo(JavaForkOptions options) {
        throw new UnsupportedOperationException();
    }

    public ExecHandle build() {
        if (mainClass == null) {
            throw new IllegalStateException("No main class specified");
        }
        return super.build();
    }

    @Override
    public JavaExecHandleBuilder setIgnoreExitValue(boolean ignoreExitValue) {
        super.setIgnoreExitValue(ignoreExitValue);
        return this;
    }

    @Override
    public List getJvmArgumentProviders() {
        return javaOptions.getJvmArgumentProviders();
    }
}
 















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