/*
* Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
*
* 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.jboss.errai.common.rebind;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.Set;
/**
* @author Mike Brock
*/
public class ClassListReader {
public static Set<String> getClassSetFromFile(final File file) {
InputStream inputStream = null;
try {
inputStream = new BufferedInputStream(new FileInputStream(file));
final byte[] buf = new byte[1024];
int read;
final Set<String> classSet = new HashSet<String>();
final StringBuilder strBuf = new StringBuilder(64);
while ((read = inputStream.read(buf)) != -1) {
for (int i = 0; i < read; i++) {
switch (buf[i]) {
case '\n':
classSet.add(strBuf.toString().trim());
strBuf.delete(0, strBuf.length());
break;
default:
strBuf.append((char) buf[i]);
break;
}
}
}
if (strBuf.length() > 0) {
classSet.add(strBuf.toString().trim());
}
return classSet;
}
catch (IOException e) {
throw new RuntimeException("could not load file", e);
}
finally {
try {
if (inputStream != null) inputStream.close();
}
catch (IOException e) {
throw new RuntimeException("error closing file", e);
}
}
}
}