jaxws/src/share/classes/javax/activation/FileDataSource.java
changeset 8 474761f14bca
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxws/src/share/classes/javax/activation/FileDataSource.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,158 @@
+/*
+ * Copyright 1997-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.activation;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileNotFoundException;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import com.sun.activation.registries.MimeTypeFile;
+
+/**
+ * The FileDataSource class implements a simple DataSource object
+ * that encapsulates a file. It provides data typing services via
+ * a FileTypeMap object. <p>
+ *
+ * <b>FileDataSource Typing Semantics</b><p>
+ *
+ * The FileDataSource class delegates data typing of files
+ * to an object subclassed from the FileTypeMap class.
+ * The <code>setFileTypeMap</code> method can be used to explicitly
+ * set the FileTypeMap for an instance of FileDataSource. If no
+ * FileTypeMap is set, the FileDataSource will call the FileTypeMap's
+ * getDefaultFileTypeMap method to get the System's default FileTypeMap.
+ *
+ * @see javax.activation.DataSource
+ * @see javax.activation.FileTypeMap
+ * @see javax.activation.MimetypesFileTypeMap
+ *
+ * @since 1.6
+ */
+public class FileDataSource implements DataSource {
+
+    // keep track of original 'ref' passed in, non-null
+    // one indicated which was passed in:
+    private File _file = null;
+    private FileTypeMap typeMap = null;
+
+    /**
+     * Creates a FileDataSource from a File object. <i>Note:
+     * The file will not actually be opened until a method is
+     * called that requires the file to be opened.</i>
+     *
+     * @param file the file
+     */
+    public FileDataSource(File file) {
+        _file = file;   // save the file Object...
+    }
+
+    /**
+     * Creates a FileDataSource from
+     * the specified path name. <i>Note:
+     * The file will not actually be opened until a method is
+     * called that requires the file to be opened.</i>
+     *
+     * @param name the system-dependent file name.
+     */
+    public FileDataSource(String name) {
+        this(new File(name));   // use the file constructor
+    }
+
+    /**
+     * This method will return an InputStream representing the
+     * the data and will throw an IOException if it can
+     * not do so. This method will return a new
+     * instance of InputStream with each invocation.
+     *
+     * @return an InputStream
+     */
+    public InputStream getInputStream() throws IOException {
+        return new FileInputStream(_file);
+    }
+
+    /**
+     * This method will return an OutputStream representing the
+     * the data and will throw an IOException if it can
+     * not do so. This method will return a new instance of
+     * OutputStream with each invocation.
+     *
+     * @return an OutputStream
+     */
+    public OutputStream getOutputStream() throws IOException {
+        return new FileOutputStream(_file);
+    }
+
+    /**
+     * This method returns the MIME type of the data in the form of a
+     * string. This method uses the currently installed FileTypeMap. If
+     * there is no FileTypeMap explictly set, the FileDataSource will
+     * call the <code>getDefaultFileTypeMap</code> method on
+     * FileTypeMap to acquire a default FileTypeMap. <i>Note: By
+     * default, the FileTypeMap used will be a MimetypesFileTypeMap.</i>
+     *
+     * @return the MIME Type
+     * @see javax.activation.FileTypeMap#getDefaultFileTypeMap
+     */
+    public String getContentType() {
+        // check to see if the type map is null?
+        if (typeMap == null)
+            return FileTypeMap.getDefaultFileTypeMap().getContentType(_file);
+        else
+            return typeMap.getContentType(_file);
+    }
+
+    /**
+     * Return the <i>name</i> of this object. The FileDataSource
+     * will return the file name of the object.
+     *
+     * @return the name of the object.
+     * @see javax.activation.DataSource
+     */
+    public String getName() {
+        return _file.getName();
+    }
+
+    /**
+     * Return the File object that corresponds to this FileDataSource.
+     * @return the File object for the file represented by this object.
+     */
+    public File getFile() {
+        return _file;
+    }
+
+    /**
+     * Set the FileTypeMap to use with this FileDataSource
+     *
+     * @param map The FileTypeMap for this object.
+     */
+    public void setFileTypeMap(FileTypeMap map) {
+        typeMap = map;
+    }
+}