BufferToDom.java

/*
 * Copyright 2016 The Simple File Server Authors
 *
 * 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 org.sfs.rx;

import io.vertx.core.buffer.Buffer;
import org.w3c.dom.Document;
import rx.functions.Func1;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.ByteArrayInputStream;

import static javax.xml.parsers.DocumentBuilderFactory.newInstance;

public class BufferToDom implements Func1<Buffer, Document> {

    @Override
    public Document call(Buffer buffer) {
        DocumentBuilderFactory docFactory = newInstance();
        try {
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();

            return docBuilder.parse(new ByteArrayInputStream(buffer.getBytes()));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}