1 files changed, 146 insertions, 0 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/binding/FormParameterStore.java b/bkucommon/src/main/java/at/gv/egiz/bku/binding/FormParameterStore.java
new file mode 100644
index 00000000..8b6cd4b2
--- /dev/null
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/binding/FormParameterStore.java
@@ -0,0 +1,146 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* 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 at.gv.egiz.bku.binding;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.Iterator;
+
+import org.apache.commons.fileupload.FileItemHeaders;
+import org.apache.commons.fileupload.util.FileItemHeadersImpl;
+
+import at.gv.egiz.bku.slexceptions.SLRuntimeException;
+import at.gv.egiz.bku.utils.StreamUtil;
+
+/**
+ * Simple store for form parameters based on a byte[]
+ * 
+ * @author wbauer
+ * 
+ */
+public class FormParameterStore implements FormParameter {
+
+  private byte[] dataBuffer;
+  private String contentType;
+  private String parameterName;
+  private boolean initialized = false;
+  protected FileItemHeaders headers;
+
+  /**
+   * Make sure to call init after creating a new instance.
+   */
+  public FormParameterStore() {
+  }
+
+  public void init(InputStream dataSource, String paramName,
+      String contentType, FileItemHeaders header) throws IOException {
+    ByteArrayOutputStream os = new ByteArrayOutputStream();
+    StreamUtil.copyStream(dataSource, os);
+    this.dataBuffer = os.toByteArray();
+    this.parameterName = paramName;
+    this.contentType = contentType;
+    initialized = true;
+    this.headers = header;
+  }
+  
+  public void init(byte[] dataSource, String paramName,
+      String contentType, FileItemHeaders header) throws IOException {
+    this.dataBuffer = dataSource;
+    this.parameterName = paramName;
+    this.contentType = contentType;
+    initialized = true;
+    this.headers = header;
+  }
+
+  public void init(FormParameter fp) throws IOException {
+    ByteArrayOutputStream os = new ByteArrayOutputStream();
+    StreamUtil.copyStream(fp.getFormParameterValue(), os);
+    this.dataBuffer = os.toByteArray();
+    this.parameterName = fp.getFormParameterName();
+    this.contentType = fp.getFormParameterContentType();
+    if (fp instanceof FormParameterImpl) {
+      headers = ((FormParameterImpl) fp).getHeaders();
+    } else {
+      FileItemHeadersImpl headersImpl = new FileItemHeadersImpl();
+      for (Iterator<String> i = fp.getHeaderNames(); i.hasNext();) {
+        String headerName = i.next();
+        headersImpl.addHeader(headerName, fp.getHeaderValue(headerName));
+      }
+    }
+    initialized = true;
+  }
+
+  protected void ensureInitialized() {
+    if (!initialized) {
+      throw new SLRuntimeException("FormParameterStore not initialized");
+    }
+  }
+
+  /**
+   * Reads all data from the stream and stores it internally. The stream will
+   * not be closed.
+   * 
+   * @param datSource
+   * @param formName
+   * @param contentType
+   */
+  @Override
+  public String getFormParameterContentType() {
+    ensureInitialized();
+    return contentType;
+  }
+
+  @Override
+  public String getFormParameterName() {
+    ensureInitialized();
+    return parameterName;
+  }
+
+  /**
+   * May be called more than once.
+   */
+  @Override
+  public InputStream getFormParameterValue() {
+    return new ByteArrayInputStream(dataBuffer);
+  }
+
+  @Override
+  public String getHeaderValue(String name) {
+    if (headers == null) {
+      return null;
+    }
+    return headers.getHeader(name);
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public Iterator<String> getHeaderNames() {
+    if (headers == null) {
+      return Collections.EMPTY_LIST.iterator();
+    }
+    return headers.getHeaderNames();
+  }
+  
+  public boolean isEmpty() {
+    ensureInitialized();
+    return dataBuffer.length == 0;
+  }
+
+}