aspects/dom-aspects/src/main/java/org/apache/axiom/dom/DocumentWhitespaceFilter.java

/*
 * 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.axiom.dom;

import org.apache.axiom.core.CoreCharacterDataNode;
import org.apache.axiom.core.CoreDocument;
import org.apache.axiom.core.CoreNode;
import org.apache.axiom.core.NodeFilter;
import org.apache.axiom.core.NodeType;

public final class DocumentWhitespaceFilter implements NodeFilter {
    public final static DocumentWhitespaceFilter INSTANCE = new DocumentWhitespaceFilter();
    
    private DocumentWhitespaceFilter() {}

    public boolean accept(CoreNode node) {
        return node.coreGetNodeType() != NodeType.CHARACTER_DATA
                || !(((CoreCharacterDataNode)node).coreGetParent() instanceof CoreDocument);
    }
}