001 /**
002 *
003 * Copyright 2003-2004 The Apache Software Foundation
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018 package org.apache.geronimo.deployment.cli;
019
020 import java.io.BufferedReader;
021 import java.io.IOException;
022 import java.io.StringReader;
023 import java.util.Collection;
024 import java.util.LinkedList;
025 import java.util.List;
026 import javax.enterprise.deploy.spi.TargetModuleID;
027 import org.apache.geronimo.common.DeploymentException;
028 import org.apache.geronimo.deployment.plugin.ConfigIDExtractor;
029 import org.apache.geronimo.kernel.repository.Artifact;
030
031 /**
032 * Various helpers for deployment.
033 *
034 * @version $Rev: 396315 $ $Date: 2006-04-23 13:48:50 -0700 (Sun, 23 Apr 2006) $
035 */
036 public class DeployUtils extends ConfigIDExtractor {
037 /**
038 * Split up an output line so it indents at beginning and end (to fit in a
039 * typical terminal) and doesn't break in the middle of a word.
040 * @param source The unformatted String
041 * @param indent The number of characters to indent on the left
042 * @param endCol The maximum width of the entire line in characters,
043 * including indent (indent 10 with endCol 70 results
044 * in 60 "usable" characters).
045 */
046 public static String reformat(String source, int indent, int endCol) {
047 if(endCol-indent < 10) {
048 throw new IllegalArgumentException("This is ridiculous!");
049 }
050 StringBuffer buf = new StringBuffer((int)(source.length()*1.1));
051 String prefix = indent == 0 ? "" : buildIndent(indent);
052 try {
053 BufferedReader in = new BufferedReader(new StringReader(source));
054 String line;
055 int pos;
056 while((line = in.readLine()) != null) {
057 if(buf.length() > 0) {
058 buf.append('\n');
059 }
060 while(line.length() > 0) {
061 line = prefix + line;
062 if(line.length() > endCol) {
063 pos = line.lastIndexOf(' ', endCol);
064 if(pos < indent) {
065 pos = line.indexOf(' ', endCol);
066 if(pos < indent) {
067 pos = line.length();
068 }
069 }
070 buf.append(line.substring(0, pos)).append('\n');
071 if(pos < line.length()-1) {
072 line = line.substring(pos+1);
073 } else {
074 break;
075 }
076 } else {
077 buf.append(line).append("\n");
078 break;
079 }
080 }
081 }
082 } catch (IOException e) {
083 throw new AssertionError("This should be impossible");
084 }
085 return buf.toString();
086 }
087
088 private static String buildIndent(int indent) {
089 StringBuffer buf = new StringBuffer(indent);
090 for(int i=0; i<indent; i++) {
091 buf.append(' ');
092 }
093 return buf.toString();
094 }
095
096
097 }