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Ant example source code file (FilterChain.java)

This example Ant source code file (FilterChain.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Ant tags/keywords

buildexception, buildexception, expandproperties, filterchain, filterchain, headfilter, linecontains, linecontainsregexp, object, string, striplinebreaks, striplinebreaks, util, vector, vector

The FilterChain.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;

import java.util.Vector;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.filters.ChainableReader;
import org.apache.tools.ant.filters.ClassConstants;
import org.apache.tools.ant.filters.EscapeUnicode;
import org.apache.tools.ant.filters.ExpandProperties;
import org.apache.tools.ant.filters.HeadFilter;
import org.apache.tools.ant.filters.LineContains;
import org.apache.tools.ant.filters.LineContainsRegExp;
import org.apache.tools.ant.filters.PrefixLines;
import org.apache.tools.ant.filters.ReplaceTokens;
import org.apache.tools.ant.filters.StripJavaComments;
import org.apache.tools.ant.filters.StripLineBreaks;
import org.apache.tools.ant.filters.StripLineComments;
import org.apache.tools.ant.filters.TabsToSpaces;
import org.apache.tools.ant.filters.TailFilter;
import org.apache.tools.ant.filters.TokenFilter;


/**
 * FilterChain may contain a chained set of filter readers.
 *
 */
public class FilterChain extends DataType
    implements Cloneable {

    private Vector filterReaders = new Vector();

    /**
     * Add an AntFilterReader filter.
     *
     * @param filterReader an <code>AntFilterReader value
     */
    public void addFilterReader(final AntFilterReader filterReader) {
        filterReaders.addElement(filterReader);
    }

    /**
     * Return the filters.
     *
     * @return a <code>Vector value containing the filters
     */
    public Vector getFilterReaders() {
        return filterReaders;
    }

    /**
     * Add a ClassConstants filter.
     *
     * @param classConstants a <code>ClassConstants value
     */
    public void addClassConstants(final ClassConstants classConstants) {
        filterReaders.addElement(classConstants);
    }

    /**
     * Add an ExpandProperties filter.
     *
     * @param expandProperties an <code>ExpandProperties value
     */
    public void addExpandProperties(final ExpandProperties expandProperties) {
        filterReaders.addElement(expandProperties);
    }

    /**
     * Add a HeadFilter filter.
     *
     * @param headFilter a <code>HeadFilter value
     */
    public void addHeadFilter(final HeadFilter headFilter) {
        filterReaders.addElement(headFilter);
    }

    /**
     * Add a LineContains filter.
     *
     * @param lineContains a <code>LineContains value
     */
    public void addLineContains(final LineContains lineContains) {
        filterReaders.addElement(lineContains);
    }

    /**
     * Add a LineContainsRegExp filter.
     *
     * @param lineContainsRegExp a <code>LineContainsRegExp value
     */
    public void addLineContainsRegExp(final LineContainsRegExp
                                                lineContainsRegExp) {
        filterReaders.addElement(lineContainsRegExp);
    }

    /**
     * Add a PrefixLines filter.
     *
     * @param prefixLines a <code>PrefixLines value
     */
    public void addPrefixLines(final PrefixLines prefixLines) {
        filterReaders.addElement(prefixLines);
    }

    /**
     * Add a ReplaceTokens filter.
     *
     * @param replaceTokens a <code>ReplaceTokens value
     */
    public void addReplaceTokens(final ReplaceTokens replaceTokens) {
        filterReaders.addElement(replaceTokens);
    }

    /**
     * Add a StripJavaCommands filter.
     *
     * @param stripJavaComments a <code>StripJavaComments value
     */
    public void addStripJavaComments(final StripJavaComments
                                                stripJavaComments) {
        filterReaders.addElement(stripJavaComments);
    }

    /**
     * Add a StripLineBreaks filter.
     *
     * @param stripLineBreaks a <code>StripLineBreaks value
     */
    public void addStripLineBreaks(final StripLineBreaks
                                                stripLineBreaks) {
        filterReaders.addElement(stripLineBreaks);
    }

    /**
     * Add a StripLineComments filter.
     *
     * @param stripLineComments a <code>StripLineComments value
     */
    public void addStripLineComments(final StripLineComments
                                                stripLineComments) {
        filterReaders.addElement(stripLineComments);
    }

    /**
     * Add a TabsToSpaces filter.
     *
     * @param tabsToSpaces a <code>TabsToSpaces value
     */
    public void addTabsToSpaces(final TabsToSpaces tabsToSpaces) {
        filterReaders.addElement(tabsToSpaces);
    }

    /**
     * Add a TailFilter filter.
     *
     * @param tailFilter a <code>TailFilter value
     */
    public void addTailFilter(final TailFilter tailFilter) {
        filterReaders.addElement(tailFilter);
    }

    /**
     * Add an EscapeUnicode filter.
     *
     * @param escapeUnicode an <code>EscapeUnicode value
     * @since Ant 1.6
     */
    public void addEscapeUnicode(final EscapeUnicode escapeUnicode) {
        filterReaders.addElement(escapeUnicode);
    }

    /**
     * Add a TokenFilter filter.
     *
     * @param tokenFilter a <code>TokenFilter value
     * @since Ant 1.6
     */
    public void addTokenFilter(final TokenFilter tokenFilter) {
        filterReaders.addElement(tokenFilter);
    }

    /**
     * Add a delete characters filter.
     *
     * @param filter a <code>TokenFilter.DeleteCharacters value
     * @since Ant 1.6
     */
    public void addDeleteCharacters(TokenFilter.DeleteCharacters filter) {
        filterReaders.addElement(filter);
    }

    /**
     * Add a containsregex filter.
     *
     * @param filter a <code>TokenFilter.ContainsRegex value
     * @since Ant 1.6
     */
    public void addContainsRegex(TokenFilter.ContainsRegex filter) {
        filterReaders.addElement(filter);
    }

    /**
     * Add a replaceregex filter.
     *
     * @param filter a <code>TokenFilter.ReplaceRegex value
     */
    public void addReplaceRegex(TokenFilter.ReplaceRegex filter) {
        filterReaders.addElement(filter);
    }

    /**
     * Add a trim filter.
     *
     * @param filter a <code>TokenFilter.Trim value
     * @since Ant 1.6
     */
    public void addTrim(TokenFilter.Trim filter) {
        filterReaders.addElement(filter);
    }

    /**
     * Add a replacestring filter.
     *
     * @param filter a <code>TokenFilter.ReplaceString value
     * @since Ant 1.6
     */
    public void addReplaceString(
        TokenFilter.ReplaceString filter) {
        filterReaders.addElement(filter);
    }

    /**
     * Add an ignoreBlank filter.
     *
     * @param filter a <code>TokenFilter.IgnoreBlank value
     * @since Ant 1.6
     */
    public void addIgnoreBlank(
        TokenFilter.IgnoreBlank filter) {
        filterReaders.addElement(filter);
    }


    /**
     * Makes this instance in effect a reference to another FilterChain
     * instance.
     *
     * <p>You must not set another attribute or nest elements inside
     * this element if you make it a reference.</p>
     *
     * @param r the reference to which this instance is associated
     * @exception BuildException if this instance already has been configured.
     */
    public void setRefid(Reference r) throws BuildException {
        if (!filterReaders.isEmpty()) {
            throw tooManyAttributes();
        }
        // change this to get the objects from the other reference
        Object o = r.getReferencedObject(getProject());
        if (o instanceof FilterChain) {
            FilterChain fc = (FilterChain) o;
            filterReaders = fc.getFilterReaders();
        } else {
            String msg = r.getRefId() + " doesn\'t refer to a FilterChain";
            throw new BuildException(msg);
        }

        super.setRefid(r);
    }

    /**
     * Add a chainfilter filter.
     *
     * @param filter a <code>ChainableReader value
     * @since Ant 1.6
     */

    public void add(ChainableReader filter) {
        filterReaders.addElement(filter);
    }

}

Other Ant examples (source code examples)

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