| /* |
| * 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. |
| */ |
| |
| package org.apache.taverna.t2referencetest; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.taverna.reference.AbstractExternalReference; |
| import org.apache.taverna.reference.DereferenceException; |
| import org.apache.taverna.reference.ExternalReferenceSPI; |
| import org.apache.taverna.reference.ReferenceContext; |
| import org.apache.taverna.reference.ReferencedDataNature; |
| |
| /** |
| * BlueReferences carry their data as an internal String and have a resolution |
| * cost of 1.0f whatever the value of that string. |
| * |
| * @author Tom Oinn |
| * |
| */ |
| public class BlueReference extends AbstractExternalReference implements |
| ExternalReferenceSPI { |
| |
| // Hold the 'value' of this reference, probably the simplest backing store |
| // possible for an ExternalReferenceSPI implementation :) |
| private String contents; |
| |
| public BlueReference() { |
| // |
| } |
| |
| public BlueReference(String contents) { |
| this.contents = contents; |
| } |
| |
| /** |
| * Set the 'value' of this reference as a string. It's not really a |
| * reference type in any true sense of the word, but it'll do for testing |
| * the augmentation system. This method is really here so you can configure |
| * test beans from spring. |
| */ |
| public void setContents(String contents) { |
| this.contents = contents; |
| } |
| |
| /** |
| * Get the 'value' of this reference as a string, really just returns the |
| * internal string representation. |
| */ |
| public String getContents() { |
| return this.contents; |
| } |
| |
| /** |
| * Fakes a de-reference operation, returning a byte stream over the string |
| * data. |
| */ |
| @Override |
| public InputStream openStream(ReferenceContext arg0) { |
| try { |
| return new ByteArrayInputStream(this.contents |
| .getBytes(getCharset())); |
| } catch (UnsupportedEncodingException e) { |
| throw new DereferenceException(e); |
| } |
| } |
| |
| /** |
| * Default resolution cost of 1.0f whatever the contents |
| */ |
| @Override |
| public float getResolutionCost() { |
| return 1.0f; |
| } |
| |
| /** |
| * Data nature set to 'ReferencedDataNature.TEXT' |
| */ |
| @Override |
| public ReferencedDataNature getDataNature() { |
| return ReferencedDataNature.TEXT; |
| } |
| |
| /** |
| * Character encoding set to 'UTF-8' |
| */ |
| @Override |
| public String getCharset() { |
| return "UTF-8"; |
| } |
| |
| /** |
| * String representation for testing, returns <code>blue{CONTENTS}</code> |
| */ |
| @Override |
| public String toString() { |
| return "blue{" + contents + "}"; |
| } |
| |
| @Override |
| public Long getApproximateSizeInBytes() { |
| return new Long(contents.getBytes().length); |
| } |
| |
| @Override |
| public ExternalReferenceSPI clone() throws CloneNotSupportedException { |
| return new BlueReference(this.getContents()); |
| } |
| |
| } |