diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/filters/ClassConstants.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/filters/ClassConstants.java | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/filters/ClassConstants.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/filters/ClassConstants.java deleted file mode 100644 index 35443012..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/filters/ClassConstants.java +++ /dev/null @@ -1,165 +0,0 @@ -/* - * 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.filters; - -import java.io.IOException; -import java.io.Reader; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; - -import org.apache.tools.ant.BuildException; -import org.apache.tools.ant.util.ResourceUtils; - -/** - * Assembles the constants declared in a Java class in - * <code>key1=value1(line separator)key2=value2</code> - * format. - *<p> - * Notes: - * <ol> - * <li>This filter uses the BCEL external toolkit. - * <li>This assembles only those constants that are not created - * using the syntax <code>new whatever()</code> - * <li>This assembles constants declared using the basic datatypes - * and String only.</li> - * <li>The access modifiers of the declared constants do not matter.</li> - *</ol> - * Example:<br> - * <pre><classconstants/></pre> - * Or: - * <pre><filterreader - * classname="org.apache.tools.ant.filters.ClassConstants"/></pre> - */ -public final class ClassConstants - extends BaseFilterReader - implements ChainableReader { - /** Data that must be read from, if not null. */ - private String queuedData = null; - - /** Helper Class to be invoked via reflection. */ - private static final String JAVA_CLASS_HELPER = - "org.apache.tools.ant.filters.util.JavaClassHelper"; - - /** - * Constructor for "dummy" instances. - * - * @see BaseFilterReader#BaseFilterReader() - */ - public ClassConstants() { - super(); - } - - /** - * Creates a new filtered reader. The contents of the passed-in reader - * are expected to be the name of the class from which to produce a - * list of constants. - * - * @param in A Reader object providing the underlying stream. - * Must not be <code>null</code>. - */ - public ClassConstants(final Reader in) { - super(in); - } - - /** - * Reads and assembles the constants declared in a class file. - * - * @return the next character in the list of constants, or -1 - * if the end of the resulting stream has been reached - * - * @exception IOException if the underlying stream throws an IOException - * during reading, or if the constants for the specified class cannot - * be read (for example due to the class not being found). - */ - public int read() throws IOException { - - int ch = -1; - - if (queuedData != null && queuedData.length() == 0) { - queuedData = null; - } - - if (queuedData != null) { - ch = queuedData.charAt(0); - queuedData = queuedData.substring(1); - if (queuedData.length() == 0) { - queuedData = null; - } - } else { - final String clazz = readFully(); - if (clazz == null || clazz.length() == 0) { - ch = -1; - } else { - final byte[] bytes = clazz.getBytes(ResourceUtils.ISO_8859_1); - try { - final Class<?> javaClassHelper = - Class.forName(JAVA_CLASS_HELPER); - if (javaClassHelper != null) { - final Class<?>[] params = { - byte[].class - }; - final Method getConstants = - javaClassHelper.getMethod("getConstants", params); - final Object[] args = { - bytes - }; - // getConstants is a static method, no need to - // pass in the object - final StringBuffer sb = (StringBuffer) - getConstants.invoke(null, args); - if (sb.length() > 0) { - queuedData = sb.toString(); - return read(); - } - } - } catch (NoClassDefFoundError ex) { - throw ex; - } catch (RuntimeException ex) { - throw ex; - } catch (InvocationTargetException ex) { - Throwable t = ex.getTargetException(); - if (t instanceof NoClassDefFoundError) { - throw (NoClassDefFoundError) t; - } - if (t instanceof RuntimeException) { - throw (RuntimeException) t; - } - throw new BuildException(t); - } catch (Exception ex) { - throw new BuildException(ex); - } - } - } - return ch; - } - - /** - * Creates a new ClassConstants using the passed in - * Reader for instantiation. - * - * @param rdr A Reader object providing the underlying stream. - * Must not be <code>null</code>. - * - * @return a new filter based on this configuration, but filtering - * the specified reader - */ - public Reader chain(final Reader rdr) { - ClassConstants newFilter = new ClassConstants(rdr); - return newFilter; - } -} |