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Ant example source code file (Tokens.java)
The Tokens.java source code/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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.apache.tools.ant.types.resources; import java.io.InputStreamReader; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.Stack; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import org.apache.tools.ant.Project; import org.apache.tools.ant.BuildException; import org.apache.tools.ant.types.DataType; import org.apache.tools.ant.types.ResourceCollection; import org.apache.tools.ant.util.ConcatResourceInputStream; import org.apache.tools.ant.util.LineTokenizer; import org.apache.tools.ant.util.Tokenizer; /** * ResourceCollection consisting of StringResources gathered from tokenizing * another ResourceCollection with a Tokenizer implementation. * @since Ant 1.7 */ public class Tokens extends BaseResourceCollectionWrapper { private Tokenizer tokenizer; private String encoding; /** * Sort the contained elements. * @return a Collection of Resources. */ protected synchronized Collection getCollection() { ResourceCollection rc = getResourceCollection(); if (rc.size() == 0) { return Collections.EMPTY_SET; } if (tokenizer == null) { tokenizer = new LineTokenizer(); } ConcatResourceInputStream cat = new ConcatResourceInputStream(rc); cat.setManagingComponent(this); InputStreamReader rdr = null; if (encoding == null) { rdr = new InputStreamReader(cat); } else { try { rdr = new InputStreamReader(cat, encoding); } catch (UnsupportedEncodingException e) { throw new BuildException(e); } } ArrayList result = new ArrayList(); try { for (String s = tokenizer.getToken(rdr); s != null; s = tokenizer.getToken(rdr)) { result.add(new StringResource(s)); } } catch (IOException e) { throw new BuildException("Error reading tokens", e); } return result; } /** * Set the encoding used to create the tokens. * @param encoding the encoding to use. */ public synchronized void setEncoding(String encoding) { this.encoding = encoding; } /** * Add the nested Tokenizer to this Tokens ResourceCollection. * A LineTokenizer will be used by default. * @param tokenizer the tokenizer to add. */ public synchronized void add(Tokenizer tokenizer) { if (isReference()) { throw noChildrenAllowed(); } if (this.tokenizer != null) { throw new BuildException("Only one nested tokenizer allowed."); } this.tokenizer = tokenizer; } /** * Overrides the BaseResourceCollectionContainer version * to check the nested Tokenizer. * @param stk the stack of data types to use (recursively). * @param p the project to use to dereference the references. * @throws BuildException on error. */ protected synchronized void dieOnCircularReference(Stack stk, Project p) throws BuildException { if (isChecked()) { return; } if (isReference()) { super.dieOnCircularReference(stk, p); } else { if (tokenizer instanceof DataType) { stk.push(tokenizer); invokeCircularReferenceCheck((DataType) tokenizer, stk, p); } setChecked(true); } } } Other Ant examples (source code examples)Here is a short list of links related to this Ant Tokens.java source code file: |
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