/*
* 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 org.apache.commons.lang.StringUtils;
import org.gradle.api.internal.file.FileResolver;
import org.gradle.process.BaseExecSpec;
import org.gradle.process.internal.streams.SafeStreams;
import org.gradle.process.internal.streams.StreamsForwarder;
import org.gradle.process.internal.streams.StreamsHandler;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
public abstract class AbstractExecHandleBuilder extends DefaultProcessForkOptions implements BaseExecSpec {
private OutputStream standardOutput;
private OutputStream errorOutput;
private InputStream input;
private String displayName;
private final List<ExecHandleListener> listeners = new ArrayList<ExecHandleListener>();
boolean ignoreExitValue;
boolean redirectErrorStream;
private StreamsHandler streamsHandler;
private int timeoutMillis = Integer.MAX_VALUE;
protected boolean daemon;
public AbstractExecHandleBuilder(FileResolver fileResolver) {
super(fileResolver);
standardOutput = SafeStreams.systemOut();
errorOutput = SafeStreams.systemErr();
input = SafeStreams.emptyInput();
}
public abstract List<String> getAllArguments();
public List<String> getCommandLine() {
List<String> commandLine = new ArrayList<String>();
commandLine.add(getExecutable());
commandLine.addAll(getAllArguments());
return commandLine;
}
public AbstractExecHandleBuilder setStandardInput(InputStream inputStream) {
this.input = inputStream;
return this;
}
public InputStream getStandardInput() {
return input;
}
public AbstractExecHandleBuilder setStandardOutput(OutputStream outputStream) {
if (outputStream == null) {
throw new IllegalArgumentException("outputStream == null!");
}
this.standardOutput = outputStream;
return this;
}
public OutputStream getStandardOutput() {
return standardOutput;
}
public AbstractExecHandleBuilder setErrorOutput(OutputStream outputStream) {
if (outputStream == null) {
throw new IllegalArgumentException("outputStream == null!");
}
this.errorOutput = outputStream;
return this;
}
public OutputStream getErrorOutput() {
return errorOutput;
}
public boolean isIgnoreExitValue() {
return ignoreExitValue;
}
public BaseExecSpec setIgnoreExitValue(boolean ignoreExitValue) {
this.ignoreExitValue = ignoreExitValue;
return this;
}
public String getDisplayName() {
return displayName == null ? String.format("command '%s'", getExecutable()) : displayName;
}
public AbstractExecHandleBuilder setDisplayName(String displayName) {
this.displayName = displayName;
return this;
}
public AbstractExecHandleBuilder listener(ExecHandleListener listener) {
if (listeners == null) {
throw new IllegalArgumentException("listeners == null!");
}
this.listeners.add(listener);
return this;
}
public ExecHandle build() {
String executable = getExecutable();
if (StringUtils.isEmpty(executable)) {
throw new IllegalStateException("execCommand == null!");
}
StreamsHandler effectiveHandler = getEffectiveStreamsHandler();
return new DefaultExecHandle(getDisplayName(), getWorkingDir(), executable, getAllArguments(), getActualEnvironment(),
effectiveHandler, listeners, redirectErrorStream, timeoutMillis, daemon);
}
private StreamsHandler getEffectiveStreamsHandler() {
StreamsHandler effectiveHandler;
if (this.streamsHandler != null) {
effectiveHandler = this.streamsHandler;
} else {
boolean shouldReadErrorStream = !redirectErrorStream;
effectiveHandler = new StreamsForwarder(standardOutput, errorOutput, input, shouldReadErrorStream);
}
return effectiveHandler;
}
public AbstractExecHandleBuilder streamsHandler(StreamsHandler streamsHandler) {
this.streamsHandler = streamsHandler;
return this;
}
public AbstractExecHandleBuilder redirectErrorStream() {
this.redirectErrorStream = true;
return this;
}
public AbstractExecHandleBuilder setTimeout(int timeoutMillis) {
this.timeoutMillis = timeoutMillis;
return this;
}
}