1 files changed, 116 insertions, 0 deletions
diff --git a/src/org/apache/http/entity/InputStreamEntity.java b/src/org/apache/http/entity/InputStreamEntity.java
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+++ b/src/org/apache/http/entity/InputStreamEntity.java
@@ -0,0 +1,116 @@
+/*
+ * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/entity/InputStreamEntity.java $
+ * $Revision: 617591 $
+ * $Date: 2008-02-01 10:21:17 -0800 (Fri, 01 Feb 2008) $
+ *
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package org.apache.http.entity;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+ 
+/**
+ * A streamed entity obtaining content from an {@link InputStream InputStream}.
+ *
+ * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
+ *
+ * @version $Revision: 617591 $
+ * 
+ * @since 4.0
+ */
+public class InputStreamEntity extends AbstractHttpEntity {
+
+    private final static int BUFFER_SIZE = 2048;
+
+    private final InputStream content;
+    private final long length;
+    private boolean consumed = false;
+
+    public InputStreamEntity(final InputStream instream, long length) {
+        super();        
+        if (instream == null) {
+            throw new IllegalArgumentException("Source input stream may not be null");
+        }
+        this.content = instream;
+        this.length = length;
+    }
+
+    public boolean isRepeatable() {
+        return false;
+    }
+
+    public long getContentLength() {
+        return this.length;
+    }
+
+    public InputStream getContent() throws IOException {
+        return this.content;
+    }
+        
+    public void writeTo(final OutputStream outstream) throws IOException {
+        if (outstream == null) {
+            throw new IllegalArgumentException("Output stream may not be null");
+        }
+        InputStream instream = this.content;
+        byte[] buffer = new byte[BUFFER_SIZE];
+        int l;
+        if (this.length < 0) {
+            // consume until EOF
+            while ((l = instream.read(buffer)) != -1) {
+                outstream.write(buffer, 0, l);
+            }
+        } else {
+            // consume no more than length
+            long remaining = this.length;
+            while (remaining > 0) {
+                l = instream.read(buffer, 0, (int)Math.min(BUFFER_SIZE, remaining));
+                if (l == -1) {
+                    break;
+                }
+                outstream.write(buffer, 0, l);
+                remaining -= l;
+            }
+        }
+        this.consumed = true;
+    }
+
+    // non-javadoc, see interface HttpEntity
+    public boolean isStreaming() {
+        return !this.consumed;
+    }
+
+    // non-javadoc, see interface HttpEntity
+    public void consumeContent() throws IOException {
+        this.consumed = true;
+        // If the input stream is from a connection, closing it will read to
+        // the end of the content. Otherwise, we don't care what it does.
+        this.content.close();
+    }
+    
+} // class InputStreamEntity