| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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 com.intellij.openapi.editor.richcopy.view; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.richcopy.model.SyntaxInfo; |
| import com.intellij.openapi.util.io.FileUtilRt; |
| import com.intellij.openapi.util.registry.Registry; |
| import com.intellij.util.StringBuilderSpinAllocator; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.awt.datatransfer.DataFlavor; |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.io.StringReader; |
| |
| /** |
| * @author Denis Zhdanov |
| * @since 3/28/13 7:09 PM |
| */ |
| public abstract class AbstractSyntaxAwareReaderTransferableData extends Reader implements RawTextWithMarkup |
| { |
| |
| private static final Logger LOG = Logger.getInstance("#" + AbstractSyntaxAwareReaderTransferableData.class.getName()); |
| |
| protected String myRawText; |
| @NotNull |
| protected final SyntaxInfo mySyntaxInfo; |
| @NotNull |
| private final DataFlavor myDataFlavor; |
| |
| @Nullable private transient Reader myDelegate; |
| |
| public AbstractSyntaxAwareReaderTransferableData(@NotNull SyntaxInfo syntaxInfo, @NotNull DataFlavor dataFlavor) { |
| mySyntaxInfo = syntaxInfo; |
| myDataFlavor = dataFlavor; |
| } |
| |
| @Override |
| public DataFlavor getFlavor() { |
| return myDataFlavor; |
| } |
| |
| @Override |
| public int getOffsetCount() { |
| return 0; |
| } |
| |
| @Override |
| public int getOffsets(int[] offsets, int index) { |
| return index; |
| } |
| |
| @Override |
| public int setOffsets(int[] offsets, int index) { |
| return index; |
| } |
| |
| @Override |
| public int read() throws IOException { |
| return getDelegate().read(); |
| } |
| |
| @Override |
| public int read(@NotNull char[] cbuf, int off, int len) throws IOException { |
| return getDelegate().read(cbuf, off, len); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| myDelegate = null; |
| } |
| |
| @Override |
| public void setRawText(String rawText) { |
| myRawText = rawText; |
| } |
| |
| @NotNull |
| private Reader getDelegate() { |
| if (myDelegate != null) { |
| return myDelegate; |
| } |
| |
| int maxLength = Registry.intValue("editor.richcopy.max.size.megabytes") * FileUtilRt.MEGABYTE; |
| final StringBuilder buffer = StringBuilderSpinAllocator.alloc(); |
| try { |
| try { |
| build(buffer, maxLength); |
| } |
| catch (Exception e) { |
| LOG.error(e); |
| } |
| String s = buffer.toString(); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Resulting text: \n" + s); |
| } |
| myDelegate = new StringReader(s); |
| return myDelegate; |
| } |
| finally { |
| StringBuilderSpinAllocator.dispose(buffer); |
| } |
| } |
| |
| protected abstract void build(@NotNull StringBuilder holder, int maxLength); |
| } |