/*
* Licensed to Luca Cavanna (the "Author") under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search licenses this
* file to you 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.elasticsearch.shell.command;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintStream;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.shell.Unwrapper;
import org.elasticsearch.shell.console.Console;
import org.elasticsearch.shell.json.ToXContentAsString;
/**
* Command that allows to print out to the console its arguments
*
* @author Luca Cavanna
*/
@ExecutableCommand(aliases = {"save"})
public class SaveCommand extends Command {
private final Unwrapper unwrapper;
private final ToXContentAsString toXContentAsString;
@Inject
protected SaveCommand(Console<PrintStream> console, Unwrapper unwrapper,
ToXContentAsString toXContentAsString) {
super(console);
this.unwrapper = unwrapper;
this.toXContentAsString = toXContentAsString;
}
@SuppressWarnings("unused")
public void execute(Object arg) throws IOException {
execute(arg, true);
}
@SuppressWarnings("unused")
public void execute(Object arg, boolean prettify) throws IOException {
//Writes by default in output directory
File dir = new File("output");
if (!dir.exists()) {
dir.mkdirs();
}
execute(arg, new File(dir, "output.txt"), prettify);
}
@SuppressWarnings("unused")
public void execute(Object arg, String path) throws IOException {
execute(arg, path, true);
}
@SuppressWarnings("unused")
public void execute(Object arg, String path, boolean prettify) throws IOException {
execute(arg, new File(path), prettify);
}
public void execute(Object arg, File file) throws IOException {
execute(arg, file, true);
}
public void execute(Object arg, File file, boolean prettify) throws IOException {
//keeps appending to the same file if existing
FileWriter writer = new FileWriter(file, true);
writer.write(unwrap(arg, prettify));
writer.write('\n');
writer.close();
}
protected String unwrap(Object arg, boolean prettify) throws IOException {
Object unwrappedArg = unwrapper.unwrap(arg, prettify);
if (unwrappedArg instanceof ToXContent) {
ToXContent toXContent = (ToXContent) unwrappedArg;
return toXContentAsString.asString(toXContent);
}
if (unwrappedArg != null) {
return unwrappedArg.toString();
}
return null;
}
}