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/*
* 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.ResolveLinkExecutable;
import com.cyanogenmod.filemanager.console.CommandNotFoundException;
import com.cyanogenmod.filemanager.console.ExecutionException;
import com.cyanogenmod.filemanager.console.InsufficientPermissionsException;
import com.cyanogenmod.filemanager.model.FileSystemObject;
import com.cyanogenmod.filemanager.util.FileHelper;
import com.cyanogenmod.filemanager.util.ParseHelper;
import java.io.BufferedReader;
import java.io.File;
import java.io.StringReader;
import java.text.ParseException;
/**
* A class for retrieve the real file name of a symlink. This command
* can be used too for retrieve the absolute path of a file or directory
*
* {@link "http://unixhelp.ed.ac.uk/CGI/man-cgi?readlink"}
*/
public class ResolveLinkCommand extends SyncResultProgram implements ResolveLinkExecutable {
private static final String ID = "readlink"; //$NON-NLS-1$
private FileSystemObject mFso;
/**
* Constructor of <code>ResolveLinkCommand</code>.
*
* @param src The file system object to read
* @throws InvalidCommandDefinitionException If the command has an invalid definition
*/
public ResolveLinkCommand(String src) throws InvalidCommandDefinitionException {
super(ID, src,
(src.compareTo(FileHelper.ROOT_DIRECTORY) == 0) ?
FileHelper.ROOT_DIRECTORY :
new File(src).getParentFile().getAbsolutePath());
}
/**
* {@inheritDoc}
*/
@Override
public void parse(String in, String err) throws ParseException {
// Check the in buffer to extract information
BufferedReader br = null;
try {
br = new BufferedReader(new StringReader(in));
// Extract and parse the stat output
String line = br.readLine();
this.mFso = ParseHelper.parseStatOutput(line);
} catch (Exception ex) {
throw new ParseException(ex.getMessage(), 0);
} finally {
try {
if (br != null) {
br.close();
}
} catch (Throwable ex) {
/**NON BLOCK**/
}
}
}
/**
* {@inheritDoc}
*/
@Override
public FileSystemObject getResult() {
return this.mFso;
}
/**
* {@inheritDoc}
*/
@Override
public void checkExitCode(int exitCode)
throws InsufficientPermissionsException, CommandNotFoundException, ExecutionException {
/**NON BLOCK**/
}
}
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