X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=yang%2Fyang-parser-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fyangtools%2Fyang%2Fparser%2Futil%2FTextToASTTransformer.java;h=ae39e45aefe2b12044d99c26b8e78df149797d72;hb=16aecfbc7dd5fb07ff09c3104e57095fb8377540;hp=ce9d6a8ce9331ea2bf1d0149257cb17e46fc630b;hpb=b8ac1a71bb9b2f950f8b55c8357aac777a63a83c;p=yangtools.git

diff --git a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/util/TextToASTTransformer.java b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/util/TextToASTTransformer.java
index ce9d6a8ce9..ae39e45aef 100644
--- a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/util/TextToASTTransformer.java
+++ b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/util/TextToASTTransformer.java
@@ -1,31 +1,30 @@
 /*
- * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
+
 package org.opendaylight.yangtools.yang.parser.util;
 
+import com.google.common.annotations.Beta;
 import com.google.common.base.Charsets;
-import com.google.common.base.Function;
-import com.google.common.base.Preconditions;
-import com.google.common.io.CharStreams;
-import com.google.common.io.InputSupplier;
+import com.google.common.io.ByteSource;
 import com.google.common.util.concurrent.CheckedFuture;
 import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListeningExecutorService;
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.concurrent.Callable;
 
 import org.antlr.v4.runtime.tree.ParseTreeWalker;
 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.YangContext;
-import org.opendaylight.yangtools.util.concurrent.ExceptionMapper;
 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceException;
 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
-import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceTransformationException;
-import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceTransformer;
+import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
+import org.opendaylight.yangtools.yang.model.repo.util.SchemaSourceTransformer;
 import org.opendaylight.yangtools.yang.parser.impl.YangModelBasicValidationListener;
 import org.opendaylight.yangtools.yang.parser.impl.YangParserImpl;
 import org.slf4j.Logger;
@@ -34,73 +33,42 @@ import org.slf4j.LoggerFactory;
 /**
  * A {@link SchemaSourceTransformer} which handles translation of models from
  * {@link YangTextSchemaSource} representation into {@link ASTSchemaSource}.
- *
- * While this class is currently used explicitly, its long-term purpose is to
- * be registered with a {@link org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry}
- * and be invoked on demand when the processing pipeline requests the
- * ASTSchemaSource representation.
  */
-public final class TextToASTTransformer implements SchemaSourceTransformer<YangTextSchemaSource, ASTSchemaSource> {
-    private static final Logger LOG = LoggerFactory.getLogger(TextToASTTransformer.class);
-    private static final Function<Exception, SchemaSourceTransformationException> MAPPER = new ExceptionMapper<SchemaSourceTransformationException>("Source transformation", SchemaSourceTransformationException.class) {
+@Beta
+public final class TextToASTTransformer extends SchemaSourceTransformer<YangTextSchemaSource, ASTSchemaSource> {
+    public static final class TextToASTTransformation implements Transformation<YangTextSchemaSource, ASTSchemaSource> {
         @Override
-        protected SchemaSourceTransformationException newWithCause(final String message, final Throwable cause) {
-            return new SchemaSourceTransformationException(message, cause);
-        }
-    };
-
-    private final ListeningExecutorService executor;
-
-    private TextToASTTransformer(final ListeningExecutorService executor) {
-        this.executor = Preconditions.checkNotNull(executor);
-    }
+        public CheckedFuture<ASTSchemaSource, SchemaSourceException> apply(final YangTextSchemaSource input) throws IOException, YangSyntaxErrorException {
+            try (InputStream is = input.openStream()) {
+                final YangContext ctx = YangParserImpl.parseYangSource(is);
+                LOG.debug("Model {} parsed successfully", input);
 
-    public static final TextToASTTransformer create(final ListeningExecutorService executor) {
-        return new TextToASTTransformer(executor);
-    }
+                final ParseTreeWalker walker = new ParseTreeWalker();
+                final YangModelBasicValidationListener validator = new YangModelBasicValidationListener();
+                walker.walk(validator, ctx);
+                LOG.debug("Model {} validated successfully", input);
 
-    @Override
-    public Class<YangTextSchemaSource> getInputRepresentation() {
-        return YangTextSchemaSource.class;
-    }
+                // Backwards compatibility
+                final String text = new ByteSource() {
+                    @Override
+                    public InputStream openStream() throws IOException {
+                        return input.openStream();
+                    }
+                }.asCharSource(Charsets.UTF_8).read();
 
-    @Override
-    public Class<ASTSchemaSource> getOutputRepresentation() {
-        return ASTSchemaSource.class;
+                return Futures.immediateCheckedFuture(ASTSchemaSource.create(input.getIdentifier().getName(), ctx, text));
+            }
+        }
     }
 
-    @Override
-    public CheckedFuture<ASTSchemaSource, SchemaSourceTransformationException> transformSchemaSource(final YangTextSchemaSource source) {
-        return Futures.makeChecked(executor.submit(new Callable<ASTSchemaSource>() {
-            @Override
-            public ASTSchemaSource call() throws IOException, YangSyntaxErrorException {
-                try (InputStream is = source.openStream()) {
-                    final YangContext ctx = YangParserImpl.parseYangSource(is);
-                    LOG.debug("Model {} parsed successfully", source);
-
-                    final ParseTreeWalker walker = new ParseTreeWalker();
-                    final YangModelBasicValidationListener validator = new YangModelBasicValidationListener();
-                    walker.walk(validator, ctx);
-                    LOG.debug("Model {} validated successfully", source);
-
-                    // Backwards compatibility
-                    final String text = CharStreams.toString(
-                            CharStreams.newReaderSupplier(new InputSupplier<InputStream>() {
-                                @Override
-                                public InputStream getInput() throws IOException {
-                                    return source.openStream();
-                                }
-                            }, Charsets.UTF_8));
+    public static final TextToASTTransformation TRANSFORMATION = new TextToASTTransformation();
+    private static final Logger LOG = LoggerFactory.getLogger(TextToASTTransformer.class);
 
-                    return ASTSchemaSource.create(source.getIdentifier().getName(), ctx, text);
-                }
-            }
-        }), MAPPER);
+    private TextToASTTransformer(final SchemaRepository provider, final SchemaSourceRegistry consumer) {
+        super(provider, YangTextSchemaSource.class, consumer, ASTSchemaSource.class, TRANSFORMATION);
     }
 
-    @Override
-    public int getCost() {
-        // We perform a direct translation, so the cost is 1.
-        return 1;
+    public static TextToASTTransformer create(final SchemaRepository provider, final SchemaSourceRegistry consumer) {
+        return new TextToASTTransformer(provider, consumer);
     }
 }