| /* |
| * |
| * 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.royale.compiler.internal.embedding.transcoders; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.EnumSet; |
| import java.util.Map; |
| |
| import org.apache.commons.io.input.BOMInputStream; |
| |
| import org.apache.royale.compiler.common.ISourceLocation; |
| import org.apache.royale.compiler.constants.IASKeywordConstants; |
| import org.apache.royale.compiler.constants.INamespaceConstants; |
| import org.apache.royale.compiler.embedding.EmbedAttribute; |
| import org.apache.royale.compiler.internal.embedding.EmbedData; |
| import org.apache.royale.compiler.internal.parsing.as.ASToken; |
| import org.apache.royale.compiler.internal.parsing.as.ASTokenTypes; |
| import org.apache.royale.compiler.internal.semantics.PostProcessStep; |
| import org.apache.royale.compiler.internal.tree.as.ClassNode; |
| import org.apache.royale.compiler.internal.tree.as.FileNode; |
| import org.apache.royale.compiler.internal.tree.as.IdentifierNode; |
| import org.apache.royale.compiler.internal.tree.as.LiteralNode; |
| import org.apache.royale.compiler.internal.tree.as.ModifierNode; |
| import org.apache.royale.compiler.internal.tree.as.NamespaceIdentifierNode; |
| import org.apache.royale.compiler.internal.tree.as.PackageNode; |
| import org.apache.royale.compiler.internal.tree.as.ScopedBlockNode; |
| import org.apache.royale.compiler.internal.tree.as.VariableNode; |
| import org.apache.royale.compiler.internal.workspaces.Workspace; |
| import org.apache.royale.compiler.problems.EmbedSourceAttributeCouldNotBeReadProblem; |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| import org.apache.royale.compiler.tree.as.ILiteralNode.LiteralType; |
| import org.apache.royale.swf.tags.ICharacterTag; |
| import org.apache.royale.swf.tags.ITag; |
| |
| /** |
| * Handle the embedding of XML files |
| */ |
| public class XMLTranscoder extends TranscoderBase |
| { |
| /** |
| * Constructor. |
| * |
| * @param data The embedding data. |
| * @param workspace The workspace. |
| */ |
| public XMLTranscoder(EmbedData data, Workspace workspace) |
| { |
| super(data, workspace); |
| this.encoding = ""; |
| } |
| |
| private String encoding; |
| |
| @Override |
| public boolean analyze(ISourceLocation location, Collection<ICompilerProblem> problems) |
| { |
| boolean result = super.analyze(location, problems); |
| baseClassQName = ""; |
| return result; |
| } |
| |
| @Override |
| protected boolean setAttribute(EmbedAttribute attribute) |
| { |
| boolean isSupported = true; |
| switch (attribute) |
| { |
| case ENCODING: |
| encoding = (String)data.getAttribute(EmbedAttribute.ENCODING); |
| break; |
| default: |
| isSupported = super.setAttribute(attribute); |
| } |
| |
| return isSupported; |
| } |
| |
| @Override |
| protected Map<String, ICharacterTag> doTranscode(Collection<ITag> tags, Collection<ICompilerProblem> problems) |
| { |
| // no tags related to XML, as all it's all inlined in the generated class |
| return Collections.emptyMap(); |
| } |
| |
| @Override |
| public FileNode buildAST(Collection<ICompilerProblem> problems, String filename) |
| { |
| FileNode fileNode = new FileNode(workspace, filename); |
| PackageNode packageNode = new PackageNode(new IdentifierNode(""), null); |
| fileNode.addItem(packageNode); |
| |
| ScopedBlockNode contents = packageNode.getScopedNode(); |
| |
| ClassNode classNode = new ClassNode(new IdentifierNode(data.getQName())); |
| classNode.setNamespace(new NamespaceIdentifierNode(INamespaceConstants.public_)); |
| contents.addItem(classNode); |
| |
| // generate: public static var data:XML = ${XML_DATA}; |
| VariableNode variableNodeData = new VariableNode(new IdentifierNode("data")); |
| variableNodeData.setNamespace(new NamespaceIdentifierNode(INamespaceConstants.public_)); |
| variableNodeData.addModifier(new ModifierNode(IASKeywordConstants.STATIC)); |
| variableNodeData.setType(null, new IdentifierNode("XML")); |
| ASToken assignToken = new ASToken(ASTokenTypes.TOKEN_OPERATOR_ASSIGNMENT, -1, -1, -1, -1, "="); |
| String xmlContents = getXMLString(problems); |
| LiteralNode xmlData = new LiteralNode(LiteralType.STRING, xmlContents); |
| variableNodeData.setAssignedValue(assignToken, xmlData); |
| classNode.getScopedNode().addItem(variableNodeData); |
| |
| fileNode.runPostProcess(EnumSet.of(PostProcessStep.POPULATE_SCOPE)); |
| |
| return fileNode; |
| } |
| |
| private String getXMLString(Collection<ICompilerProblem> problems) |
| { |
| InputStream strm = getDataStream(problems); |
| if (strm == null) |
| return ""; |
| |
| Reader reader = null; |
| BOMInputStream bomStream = null; |
| StringBuilder str = new StringBuilder(); |
| try |
| { |
| bomStream = new BOMInputStream(strm); |
| String bomCharsetName = bomStream.getBOMCharsetName(); |
| if (bomCharsetName == null) |
| { |
| if (encoding == null || encoding.length() == 0) |
| { |
| bomCharsetName = System.getProperty("file.encoding"); |
| } |
| else |
| { |
| bomCharsetName = encoding; |
| } |
| } |
| |
| reader = new InputStreamReader(bomStream, bomCharsetName); |
| char[] line = new char[2048]; |
| int count = 0; |
| while ((count = reader.read(line, 0, line.length)) >= 0) |
| { |
| str.append(line, 0, count); |
| } |
| } |
| catch (IOException e) |
| { |
| problems.add(new EmbedSourceAttributeCouldNotBeReadProblem(source)); |
| } |
| finally |
| { |
| if (bomStream != null) |
| { |
| try |
| { |
| bomStream.close(); |
| } |
| catch (IOException e) |
| { |
| } |
| } |
| |
| if (reader != null) |
| { |
| try |
| { |
| reader.close(); |
| } |
| catch (IOException e) |
| { |
| } |
| } |
| } |
| |
| return str.toString(); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (!super.equals(o)) |
| return false; |
| |
| if (!(o instanceof XMLTranscoder)) |
| return false; |
| |
| XMLTranscoder t = (XMLTranscoder)o; |
| if (!encoding.equals(t.encoding)) |
| return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int hashCode = super.hashCode(); |
| |
| hashCode += encoding.hashCode(); |
| |
| return hashCode; |
| } |
| } |