org.wso2.carbon.mediation.library.util.LocalEntryUtil.java Source code

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Here is the source code for org.wso2.carbon.mediation.library.util.LocalEntryUtil.java

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/*
 * Copyright (c) 2005-2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 * 
 * WSO2 Inc. 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.wso2.carbon.mediation.library.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.StringReader;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.commons.io.FileUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class LocalEntryUtil {

    private static Log log = LogFactory.getLog(LocalEntryUtil.class);

    /**
     * 
     * Convert file to xml element
     * 
     * */
    public static OMElement getOMElement(File file) {
        FileInputStream is;
        OMElement document = null;

        try {
            is = FileUtils.openInputStream(file);
        } catch (IOException e) {
            log.error("Error while opening the file: " + file.getName() + " for reading", e);
            return null;
        }

        try {
            document = new StAXOMBuilder(is).getDocumentElement();
            document.build();
            is.close();
        } catch (XMLStreamException e) {
            log.error("Error while parsing the content of the file: " + file.getName(), e);
        } catch (IOException e) {
            log.warn("Error while closing the input stream from the file: " + file.getName(), e);
        } catch (Exception e) {
            log.error("Error while building the content of the file: " + file.getName(), e);
        }

        return document;
    }

    public static OMElement nonCoalescingStringToOm(String xmlStr) throws XMLStreamException {
        StringReader strReader = new StringReader(xmlStr);
        XMLInputFactory xmlInFac = XMLInputFactory.newInstance();
        // Non-Coalescing parsing
        xmlInFac.setProperty("javax.xml.stream.isCoalescing", false);

        XMLStreamReader parser = xmlInFac.createXMLStreamReader(strReader);
        StAXOMBuilder builder = new StAXOMBuilder(parser);

        return builder.getDocumentElement();
    }
}