added headers support to MultipartFile abstraction

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -20,6 +20,8 @@ import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
 
 import org.springframework.util.Assert;
 import org.springframework.util.FileCopyUtils;
@@ -39,6 +41,8 @@ import org.springframework.web.multipart.MultipartFile;
  */
 public class MockMultipartFile implements MultipartFile {
 
+	private static final String CONTENT_TYPE = "Content-Type";
+
 	private final String name;
 
 	private String originalFilename;
@@ -129,4 +133,26 @@ public class MockMultipartFile implements MultipartFile {
 		FileCopyUtils.copy(this.content, dest);
 	}
 
+	public String getHeader(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return this.contentType;
+		}
+		else {
+			return null;
+		}
+	}
+
+	public String[] getHeaders(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return new String[] {this.contentType};
+		}
+		else {
+			return null;
+		}
+	}
+
+	public Iterator<String> getHeaderNames(String name) {
+		return Collections.singleton(CONTENT_TYPE).iterator();
+	}
+
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -20,6 +20,8 @@ import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
 
 import org.springframework.util.Assert;
 import org.springframework.util.FileCopyUtils;
@@ -29,16 +31,18 @@ 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}
+ * <p>Useful in conjunction with a {@link MockMultipartHttpServletRequest}
  * for testing application controllers that access multipart uploads.
  *
  * @author Juergen Hoeller
  * @author Eric Crampton
  * @since 2.0
- * @see org.springframework.mock.web.MockMultipartHttpServletRequest
+ * @see MockMultipartHttpServletRequest
  */
 public class MockMultipartFile implements MultipartFile {
 
+	private static final String CONTENT_TYPE = "Content-Type";
+
 	private final String name;
 
 	private String originalFilename;
@@ -61,7 +65,7 @@ public class MockMultipartFile implements MultipartFile {
 	 * 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
+	 * @throws IOException if reading from the stream failed
 	 */
 	public MockMultipartFile(String name, InputStream contentStream) throws IOException {
 		this(name, "", null, FileCopyUtils.copyToByteArray(contentStream));
@@ -88,7 +92,7 @@ public class MockMultipartFile implements MultipartFile {
 	 * @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
+	 * @throws IOException if reading from the stream failed
 	 */
 	public MockMultipartFile(String name, String originalFilename, String contentType, InputStream contentStream)
 			throws IOException {
@@ -129,4 +133,26 @@ public class MockMultipartFile implements MultipartFile {
 		FileCopyUtils.copy(this.content, dest);
 	}
 
+	public String getHeader(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return this.contentType;
+		}
+		else {
+			return null;
+		}
+	}
+
+	public String[] getHeaders(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return new String[] {this.contentType};
+		}
+		else {
+			return null;
+		}
+	}
+
+	public Iterator<String> getHeaderNames(String name) {
+		return Collections.singleton(CONTENT_TYPE).iterator();
+	}
+
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -20,6 +20,8 @@ import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
 
 import org.springframework.util.Assert;
 import org.springframework.util.FileCopyUtils;
@@ -39,6 +41,8 @@ import org.springframework.web.multipart.MultipartFile;
  */
 public class MockMultipartFile implements MultipartFile {
 
+	private static final String CONTENT_TYPE = "Content-Type";
+
 	private final String name;
 
 	private String originalFilename;
@@ -129,4 +133,26 @@ public class MockMultipartFile implements MultipartFile {
 		FileCopyUtils.copy(this.content, dest);
 	}
 
+	public String getHeader(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return this.contentType;
+		}
+		else {
+			return null;
+		}
+	}
+
+	public String[] getHeaders(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return new String[] {this.contentType};
+		}
+		else {
+			return null;
+		}
+	}
+
+	public Iterator<String> getHeaderNames(String name) {
+		return Collections.singleton(CONTENT_TYPE).iterator();
+	}
+
 }

org.springframework.web/src/main/java/org/springframework/web/multipart/MultipartFile.java

@@ -19,6 +19,7 @@ package org.springframework.web.multipart;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Iterator;
 
 /**
  * A representation of an uploaded file received in a multipart request.
@@ -101,4 +102,28 @@ public interface MultipartFile {
 	 */
 	void transferTo(File dest) throws IOException, IllegalStateException;
 
+	/**
+	 * Return the first value associated with the given header name, if any.
+	 * @param name the name of the header
+	 * @return the first header value, or <code>null</code> if no such header was found
+	 * @since 3.1
+	 */
+	String getHeader(String name);
+
+	/**
+	 * Return all values associated with the given header name, if any.
+	 * @param name the name of the header
+	 * @return the header values as an array, or <code>null</code> if no such header was found
+	 * @since 3.1
+	 */
+	String[] getHeaders(String name);
+
+	/**
+	 * Return an {@link java.util.Iterator} of Strings containing the
+	 * names of headers associated with this file.
+	 * @return the names of the headers
+	 * @since 3.1
+	 */
+	Iterator<String> getHeaderNames(String name);
+
 }

org.springframework.web/src/main/java/org/springframework/web/multipart/commons/CommonsMultipartFile.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2006 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -21,6 +21,8 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.Serializable;
+import java.util.Collections;
+import java.util.Iterator;
 
 import org.apache.commons.fileupload.FileItem;
 import org.apache.commons.fileupload.FileUploadException;
@@ -33,10 +35,6 @@ import org.springframework.web.multipart.MultipartFile;
 /**
  * MultipartFile implementation for Jakarta Commons FileUpload.
  *
- * <p><b>NOTE:</b> As of Spring 2.0, this class requires Commons FileUpload 1.1
- * or higher. The implementation does not use any deprecated FileUpload 1.0 API
- * anymore, to be compatible with future Commons FileUpload releases.
- *
  * @author Trevor D. Cook
  * @author Juergen Hoeller
  * @since 29.09.2003
@@ -44,6 +42,8 @@ import org.springframework.web.multipart.MultipartFile;
  */
 public class CommonsMultipartFile implements MultipartFile, Serializable {
 
+	private static final String CONTENT_TYPE = "Content-Type";
+
 	protected static final Log logger = LogFactory.getLog(CommonsMultipartFile.class);
 
 	private final FileItem fileItem;
@@ -191,4 +191,26 @@ public class CommonsMultipartFile implements MultipartFile, Serializable {
 		}
 	}
 
+	public String getHeader(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return this.fileItem.getContentType();
+		}
+		else {
+			return null;
+		}
+	}
+
+	public String[] getHeaders(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return new String[] {this.fileItem.getContentType()};
+		}
+		else {
+			return null;
+		}
+	}
+
+	public Iterator<String> getHeaderNames(String name) {
+		return Collections.singleton(CONTENT_TYPE).iterator();
+	}
+
 }

org.springframework.web/src/main/java/org/springframework/web/multipart/support/StandardServletMultipartResolver.java

@@ -20,6 +20,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Collection;
+import java.util.Iterator;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.Part;
 
@@ -29,6 +30,7 @@ import org.apache.commons.logging.LogFactory;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
+import org.springframework.util.StringUtils;
 import org.springframework.web.multipart.MultipartException;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.multipart.MultipartHttpServletRequest;
@@ -149,6 +151,19 @@ public class StandardServletMultipartResolver implements MultipartResolver {
 		public void transferTo(File dest) throws IOException, IllegalStateException {
 			this.part.write(dest.getPath());
 		}
+
+		public String getHeader(String name) {
+			return this.part.getHeader(name);
+		}
+
+		public String[] getHeaders(String name) {
+			Collection<String> headers = this.part.getHeaders(name);
+			return (headers != null ? StringUtils.toStringArray(headers) : null);
+		}
+
+		public Iterator<String> getHeaderNames(String name) {
+			return this.part.getHeaderNames().iterator();
+		}
 	}
 
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -20,6 +20,8 @@ import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
 
 import org.springframework.util.Assert;
 import org.springframework.util.FileCopyUtils;
@@ -39,6 +41,8 @@ import org.springframework.web.multipart.MultipartFile;
  */
 public class MockMultipartFile implements MultipartFile {
 
+	private static final String CONTENT_TYPE = "Content-Type";
+
 	private final String name;
 
 	private String originalFilename;
@@ -61,7 +65,7 @@ public class MockMultipartFile implements MultipartFile {
 	 * 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
+	 * @throws IOException if reading from the stream failed
 	 */
 	public MockMultipartFile(String name, InputStream contentStream) throws IOException {
 		this(name, "", null, FileCopyUtils.copyToByteArray(contentStream));
@@ -88,7 +92,7 @@ public class MockMultipartFile implements MultipartFile {
 	 * @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
+	 * @throws IOException if reading from the stream failed
 	 */
 	public MockMultipartFile(String name, String originalFilename, String contentType, InputStream contentStream)
 			throws IOException {
@@ -129,4 +133,26 @@ public class MockMultipartFile implements MultipartFile {
 		FileCopyUtils.copy(this.content, dest);
 	}
 
-}
+	public String getHeader(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return this.contentType;
+		}
+		else {
+			return null;
+		}
+	}
+
+	public String[] getHeaders(String name) {
+		if (CONTENT_TYPE.equalsIgnoreCase(name)) {
+			return new String[] {this.contentType};
+		}
+		else {
+			return null;
+		}
+	}
+
+	public Iterator<String> getHeaderNames(String name) {
+		return Collections.singleton(CONTENT_TYPE).iterator();
+	}
+
+}