Java Resource File getContentAsString(String resource)

Description

get Content As String

License

Open Source License

Declaration

public static String getContentAsString(String resource) throws IOException 

Method Source Code

//package com.java2s;
/*/*ww w  . j a  v a2s  .co m*/
 * JBoss, Home of Professional Open Source.
 * Copyright 2008, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import java.io.StringWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class Main {
    public static String getContentAsString(URL url) throws IOException {
        InputStreamReader isr = getInputStreamReader(url);
        return getContentAsString(isr);
    }

    public static String getContentAsString(String resource) throws IOException {
        InputStreamReader isr = getInputStreamReader(resource);
        return getContentAsString(isr);
    }

    private static String getContentAsString(InputStreamReader isr) throws IOException {
        try {
            StringWriter writer = new StringWriter();
            char[] buf = new char[1024];
            int read;
            while ((read = isr.read(buf, 0, buf.length)) != -1) {
                writer.write(buf, 0, read);
            }
            return writer.toString();
        } finally {
            isr.close();
        }
    }

    public static InputStreamReader getInputStreamReader(URL url) throws IOException {
        return new InputStreamReader(getInputStream(url));
    }

    public static InputStreamReader getInputStreamReader(String resource) throws IOException {
        try {
            URL url = new URL(resource);
            return getInputStreamReader(url);
        } catch (MalformedURLException mue) {
            ClassLoader cl = Thread.currentThread().getContextClassLoader();
            InputStream is = cl.getResourceAsStream(resource);
            if (is == null)
                throw new IllegalArgumentException("No resource " + resource + " found");
            return new InputStreamReader(is);
        }
    }

    public static InputStream getInputStream(URL url) throws IOException {
        URLConnection conn = url.openConnection();
        conn.connect();
        return conn.getInputStream();
    }

    public static InputStream getInputStream(String resource) throws IOException {
        try {
            URL url = new URL(resource);
            return getInputStream(url);
        } catch (MalformedURLException mue) {
            ClassLoader cl = Thread.currentThread().getContextClassLoader();
            return cl.getResourceAsStream(resource);
        }
    }
}

Related

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2. getBaseLineFolder(String resourceFile)
3. getBundlesContainingResource(BundleContext bundleContext, String resourcePattern)
4. getBytes(Class contextClass, String resourceName)
5. getClassResource(Class clazz)
6. getDefaultWebXmlResourceLocation()
7. getEntriesFromResourceBundle(String rbName, Map map)
8. getFile(Class clazz, String resource)
9. getFile(Class resourceClass, String fileName)