/*
 * Copyright (C) 2007 Esmertec AG.
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed 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 com.android.im.imps;

import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;

import com.android.im.imps.ImpsConstants.ImpsVersion;

public class WbxmlPrimitiveSerializer implements PrimitiveSerializer {

    private String mVersionNs;
    private String mTransacNs;

    public WbxmlPrimitiveSerializer(ImpsVersion impsVersion, String versionNs,
            String transacNs) {
        mVersionNs = versionNs;
        mTransacNs = transacNs;
        mWbxmlSerializer = new WbxmlSerializer(impsVersion);
    }

    private WbxmlSerializer mWbxmlSerializer;

    public void serialize(Primitive primitive, OutputStream out) throws IOException,
            SerializerException {
        mWbxmlSerializer.reset();
        mWbxmlSerializer.setOutput(out);
        PrimitiveElement elem = primitive.createMessage(mVersionNs, mTransacNs);
        writeElement(elem);
    }

    private void writeElement(PrimitiveElement element) throws IOException,
            SerializerException {
        String name = element.getTagName();
        String[] atts = null;
        Map<String, String> attrMap = element.getAttributes();
        if(attrMap != null && attrMap.size() > 0) {
            atts = new String[attrMap.size() * 2];
            int index = 0;
            for (Map.Entry<String, String> entry : attrMap.entrySet()) {
                atts[index++] = entry.getKey();
                atts[index++] = entry.getValue();
            }
        }

        mWbxmlSerializer.startElement(name, atts);

        String contents = element.getContents();
        if(contents != null) {
            mWbxmlSerializer.characters(contents);
        }
        if(element.getChildCount() > 0) {
            for(PrimitiveElement child : element.getChildren()) {
                writeElement(child);
            }
        }
        mWbxmlSerializer.endElement();
    }
}