org.springframework.integration.zip.splitter.UnZipResultSplitter.java Source code

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Here is the source code for org.springframework.integration.zip.splitter.UnZipResultSplitter.java

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/*
 * Copyright 2015-2017 the original author or 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
 *
 *      https://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.springframework.integration.zip.splitter;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.commons.io.FilenameUtils;

import org.springframework.integration.file.FileHeaders;
import org.springframework.integration.splitter.AbstractMessageSplitter;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.integration.zip.ZipHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.util.Assert;

/**
 *
 * @author Gunnar Hillert
 * @author Andriy Kryvtsun
 * @author Artem Bilan
 *
 * @since 1.0
 */
public class UnZipResultSplitter extends AbstractMessageSplitter {

    @Override
    @SuppressWarnings("unchecked")
    protected Object splitMessage(Message<?> message) {
        Assert.state(message.getPayload() instanceof Map,
                "The UnZipResultSplitter supports only Map<String, Object> payload");
        Map<String, Object> unzippedEntries = (Map<String, Object>) message.getPayload();
        MessageHeaders headers = message.getHeaders();

        List<MessageBuilder<Object>> messageBuilders = new ArrayList<MessageBuilder<Object>>(
                unzippedEntries.size());

        for (Map.Entry<String, Object> entry : unzippedEntries.entrySet()) {
            String path = FilenameUtils.getPath(entry.getKey());
            String filename = FilenameUtils.getName(entry.getKey());
            MessageBuilder<Object> messageBuilder = MessageBuilder.withPayload(entry.getValue())
                    .setHeader(FileHeaders.FILENAME, filename).setHeader(ZipHeaders.ZIP_ENTRY_PATH, path)
                    .copyHeadersIfAbsent(headers);
            messageBuilders.add(messageBuilder);
        }

        return messageBuilders;
    }

}