/*
 * 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.tuscany.sca.domain.search.impl;

import java.util.LinkedList;

import org.apache.tuscany.sca.domain.search.DocumentMap;
import org.apache.tuscany.sca.domain.search.DocumentProcessor;

/**
 * 
 * @version $Rev$ $Date$
 */
public class FileDocumentProcessor extends LinkedList<DocumentProcessor> implements DocumentProcessor {

    private static final long serialVersionUID = 7843338343970738591L;

    public Document process(DocumentProcessor parentProcessor,
                            DocumentMap documents,
                            Object object,
                            Document doc,
                            String parent) {

        if (object instanceof FileContent) {
            FileContent file = (FileContent)object;

            if (!file.isLeaf()) {

                if (doc == null) {
                    doc = documents.get(SearchFields.FILE_CONTENT_FIELD + file.getPath());
                }

                // FileContent[] files = file.getChildren();

                // for (FileContent childFile : files) {
                // // Document fileDoc = parentProcessor.process(
                // // parentProcessor, documents, childFile, null,
                // // parent);
                //
                // Document fileDoc = null;
                //
                // fileDoc = process(this, documents, childFile, null, parent);
                //
                // if (fileDoc == null) {
                // continue;
                // }
                //
                // fileDoc.add(new Field(SearchFields.PARENT_FIELD, parent,
                // Field.Store.YES, Field.Index.ANALYZED));
                //
                // }

                return doc;

            } else {

                for (DocumentProcessor processor : this) {
                    Document newDoc = processor.process(this, documents, file, doc, parent);

                    if (newDoc != null) {
                        return newDoc;
                    }

                }

            }

        }

        return doc;

    }

    public Object getDocumentKey(Object object) {

        if (object instanceof FileContent) {
            FileContent file = (FileContent)object;
            String path = file.getPath();

            if (path != null && path.length() == 0) {
                return null;
            }

            return SearchFields.FILE_CONTENT_FIELD + path;

        }

        throw new IllegalArgumentException();

    }

}