bwfla.modules.pdp.client.Helper.java Source code

Introduction

Here is the source code for bwfla.modules.pdp.client.Helper.java

Source

/* 
 * Copyright (c) 2014 Leander Sabel
 *
 * 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 bwfla.modules.pdp.client;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;

import com.google.common.base.Charsets;
import com.google.common.io.CharStreams;
import com.google.common.io.Files;

import lombok.NonNull;
import lombok.extern.log4j.Log4j;

@Log4j
public class Helper {

    /**
     * Load a file from a local folder
     * 
     * @param path
     *          The file's path e.g. "example/example-policy.xml"
     * @return the file's content in a string
     */
    public static String loadContentFromFile(@NonNull String path) {
        try (InputStream requestIn = Helper.class.getClassLoader().getResourceAsStream(path)) {
            if (requestIn == null)
                throw new IOException();

            return CharStreams.toString(new InputStreamReader(requestIn, "UTF-8"));
        } catch (IOException e) {
            log.error("Could not file from path: " + path, e);
            return null;
        }
    }

    /**
     * 
     * @param path
     * @param content
     */
    public static void writeContentToFile(@NonNull String path, @NonNull String content) {
        URL url = Helper.class.getClassLoader().getResource(path);
        try {
            Files.write(content, new File(url.getFile()), Charsets.UTF_8);
        } catch (IOException e) {
            log.error("Could not write to file " + path, e);
        }
    }

}