com.clusterra.pmbok.pdf.application.ResourceHelper Maven / Gradle / Ivy

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/*
 * Copyright (c) 2015.
 *
 * 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.clusterra.pmbok.pdf.application;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.Validate;
import org.springframework.core.io.Resource;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by Denis Kuchugurov
 * on 13/05/15 23:13.
 */
public abstract class ResourceHelper {

    public static Map getContent(Map resources) {
        Validate.notNull(resources, "resources is null");
        Map result = new HashMap<>(resources.size());

        for (Map.Entry entry : resources.entrySet()) {
            try {
                InputStream inputStream = entry.getValue().getInputStream();
                byte[] content = IOUtils.toByteArray(inputStream);
                result.put(entry.getKey(), content);
                IOUtils.closeQuietly(inputStream);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return result;
    }

}