/*
* Copyright (C) 2012 The CyanogenMod Project
*
* 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 com.cyanogenmod.filemanager.commands.shell;
import com.cyanogenmod.filemanager.commands.ChangeCurrentDirExecutable;
import com.cyanogenmod.filemanager.console.CommandNotFoundException;
import com.cyanogenmod.filemanager.console.ExecutionException;
import com.cyanogenmod.filemanager.console.InsufficientPermissionsException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.text.ParseException;
/**
* A class for change the current directory of the shell.
*
* {@link "http://unixhelp.ed.ac.uk/CGI/man-cgi?cd"}
*/
public class ChangeCurrentDirCommand
extends SyncResultProgram implements ChangeCurrentDirExecutable {
private static final String ID = "cd"; //$NON-NLS-1$
private Boolean mRet;
/**
* Constructor of <code>ChangeCurrentDirCommand</code>.
*
* @param newDir The new directory to which to change
* @throws InvalidCommandDefinitionException If the command has an invalid definition
*/
public ChangeCurrentDirCommand(String newDir) throws InvalidCommandDefinitionException {
super(ID, newDir);
}
/**
* {@inheritDoc}
*/
@Override
public void parse(String in, String err) throws ParseException {
//Release the return object
this.mRet = Boolean.TRUE;
// Check the in and err buffer to extract information
BufferedReader br = null;
try {
br = new BufferedReader(new StringReader(err));
String szLine = br.readLine();
if (szLine != null) {
if (szLine.indexOf("No such file or directory") != -1) { //$NON-NLS-1$
this.mRet = Boolean.FALSE;
}
}
br.close();
br = new BufferedReader(new StringReader(in));
szLine = br.readLine();
if (szLine != null) {
if (szLine.indexOf("No such file or directory") != -1) { //$NON-NLS-1$
this.mRet = Boolean.FALSE;
}
}
} catch (IOException ioEx) {
throw new ParseException(ioEx.getMessage(), 0);
} catch (Exception ex) {
throw new ParseException(ex.getMessage(), 0);
} finally {
try {
if (br != null) {
br.close();
}
} catch (Throwable ex) {
/**NON BLOCK**/
}
}
}
/**
* {@inheritDoc}
*/
@Override
public Boolean getResult() {
return this.mRet;
}
/**
* {@inheritDoc}
*/
@Override
public void checkExitCode(int exitCode)
throws InsufficientPermissionsException, CommandNotFoundException, ExecutionException {
if (exitCode != 0) {
throw new ExecutionException("exitcode != 0"); //$NON-NLS-1$
}
}
}