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A web service test double for all occasions - standalone edition

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/*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * 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.github.tomakehurst.wiremock.jetty9;

import com.github.tomakehurst.wiremock.http.Request;
import com.github.tomakehurst.wiremock.servlet.WireMockHttpServletMultipartAdapter;
import com.google.common.base.Function;
import org.eclipse.jetty.util.MultiPartInputStreamParser;

import javax.servlet.ServletException;
import javax.servlet.http.Part;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Collection;

import static com.github.tomakehurst.wiremock.common.Exceptions.throwUnchecked;
import static com.google.common.collect.FluentIterable.from;

public class MultipartParser {

    @SuppressWarnings("unchecked")
    public static Collection parse(byte[] body, String contentType) {
        MultiPartInputStreamParser parser = new MultiPartInputStreamParser(new ByteArrayInputStream(body), contentType, null, null);
        try {
            return from(parser.getParts()).transform(new Function() {
                @Override
                public Request.Part apply(Part input) {
                    return WireMockHttpServletMultipartAdapter.from(input);
                }
            }).toList();
        } catch (Exception e) {
            return throwUnchecked(e, Collection.class);
        }
    }
}