added MockMultipartFile to web-portlet module

org.springframework.web.portlet/src/test/java/org/springframework/mock/web/MockMultipartFile.java

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+/*
+ * Copyright 2002-2010 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
+ *
+ *      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 org.springframework.mock.web;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.springframework.util.Assert;
+import org.springframework.util.FileCopyUtils;
+import org.springframework.web.multipart.MultipartFile;
+
+/**
+ * Mock implementation of the {@link org.springframework.web.multipart.MultipartFile}
+ * interface.
+ *
+ * <p>Useful in conjunction with a {@link org.springframework.mock.web.MockMultipartHttpServletRequest}
+ * for testing application controllers that access multipart uploads.
+ *
+ * @author Juergen Hoeller
+ * @author Eric Crampton
+ * @since 2.0
+ * @see org.springframework.mock.web.MockMultipartHttpServletRequest
+ */
+public class MockMultipartFile implements MultipartFile {
+
+	private final String name;
+
+	private String originalFilename;
+
+	private String contentType;
+
+	private final byte[] content;
+
+
+	/**
+	 * Create a new MockMultipartFile with the given content.
+	 * @param name the name of the file
+	 * @param content the content of the file
+	 */
+	public MockMultipartFile(String name, byte[] content) {
+		this(name, "", null, content);
+	}
+
+	/**
+	 * Create a new MockMultipartFile with the given content.
+	 * @param name the name of the file
+	 * @param contentStream the content of the file as stream
+	 * @throws java.io.IOException if reading from the stream failed
+	 */
+	public MockMultipartFile(String name, InputStream contentStream) throws IOException {
+		this(name, "", null, FileCopyUtils.copyToByteArray(contentStream));
+	}
+
+	/**
+	 * Create a new MockMultipartFile with the given content.
+	 * @param name the name of the file
+	 * @param originalFilename the original filename (as on the client's machine)
+	 * @param contentType the content type (if known)
+	 * @param content the content of the file
+	 */
+	public MockMultipartFile(String name, String originalFilename, String contentType, byte[] content) {
+		Assert.hasLength(name, "Name must not be null");
+		this.name = name;
+		this.originalFilename = (originalFilename != null ? originalFilename : "");
+		this.contentType = contentType;
+		this.content = (content != null ? content : new byte[0]);
+	}
+
+	/**
+	 * Create a new MockMultipartFile with the given content.
+	 * @param name the name of the file
+	 * @param originalFilename the original filename (as on the client's machine)
+	 * @param contentType the content type (if known)
+	 * @param contentStream the content of the file as stream
+	 * @throws java.io.IOException if reading from the stream failed
+	 */
+	public MockMultipartFile(String name, String originalFilename, String contentType, InputStream contentStream)
+			throws IOException {
+
+		this(name, originalFilename, contentType, FileCopyUtils.copyToByteArray(contentStream));
+	}
+
+
+	public String getName() {
+		return this.name;
+	}
+
+	public String getOriginalFilename() {
+		return this.originalFilename;
+	}
+
+	public String getContentType() {
+		return this.contentType;
+	}
+
+	public boolean isEmpty() {
+		return (this.content.length == 0);
+	}
+
+	public long getSize() {
+		return this.content.length;
+	}
+
+	public byte[] getBytes() throws IOException {
+		return this.content;
+	}
+
+	public InputStream getInputStream() throws IOException {
+		return new ByteArrayInputStream(this.content);
+	}
+
+	public void transferTo(File dest) throws IOException, IllegalStateException {
+		FileCopyUtils.copy(this.content, dest);
+	}
+
+}