OpenApi: Refactor inconsistent naming of modelContext

[netconf.git] / netconf / netconf-netty-util / src / main / java / org / opendaylight / netconf / nettyutil / handler / NetconfEXICodec.java

diff --git a/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/NetconfEXICodec.java b/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/NetconfEXICodec.java
index 235b5378c26736ea5c02b49621b22650e55b0920..415afe3d0abad056a01a6b6301ec05f972177025 100644 (file)
--- a/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/NetconfEXICodec.java
+++ b/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/NetconfEXICodec.java
@@ -5,100 +5,56 @@
  * 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.netconf.nettyutil.handler;
 
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
-import org.openexi.proc.HeaderOptionsOutputType;
-import org.openexi.proc.common.EXIOptions;
-import org.openexi.proc.common.EXIOptionsException;
-import org.openexi.proc.common.GrammarOptions;
-import org.openexi.proc.grammars.GrammarCache;
-import org.openexi.sax.EXIReader;
-import org.openexi.sax.Transmogrifier;
-import org.openexi.sax.TransmogrifierException;
+import org.opendaylight.netconf.nettyutil.handler.exi.EXIParameters;
+import org.opendaylight.netconf.shaded.exificient.core.EXIFactory;
+import org.opendaylight.netconf.shaded.exificient.core.exceptions.EXIException;
+import org.opendaylight.netconf.shaded.exificient.main.api.sax.SAXEncoder;
 import org.xml.sax.EntityResolver;
 import org.xml.sax.InputSource;
 
 public final class NetconfEXICodec {
-    /**
-     * NETCONF is XML environment, so the use of EXI cookie is not really needed. Adding it
-     * decreases efficiency of encoding by adding human-readable 4 bytes "EXI$" to the head
-     * of the stream. This is really useful, so let's output it now.
-     */
-    private static final boolean OUTPUT_EXI_COOKIE = true;
     /**
      * OpenEXI does not allow us to directly prevent resolution of external entities. In order
      * to prevent XXE attacks, we reuse a single no-op entity resolver.
      */
-    private static final EntityResolver ENTITY_RESOLVER = new EntityResolver() {
-        @Override
-        public InputSource resolveEntity(final String publicId, final String systemId) {
-            return new InputSource();
-        }
-    };
+    private static final EntityResolver ENTITY_RESOLVER = (publicId, systemId) -> new InputSource();
 
     /**
      * Since we have a limited number of options we can have, instantiating a weak cache
      * will allow us to reuse instances where possible.
      */
-    private static final LoadingCache<Short, GrammarCache> GRAMMAR_CACHES =
-            CacheBuilder.newBuilder().weakValues().build(new CacheLoader<Short, GrammarCache>() {
+    private static final LoadingCache<EXIParameters, NetconfEXICodec> CODECS =
+            CacheBuilder.newBuilder().weakValues().build(new CacheLoader<EXIParameters, NetconfEXICodec>() {
                 @Override
-                public GrammarCache load(final Short key) {
-                    return new GrammarCache(key);
+                public NetconfEXICodec load(final EXIParameters key) {
+                    return new NetconfEXICodec(key.getFactory());
                 }
             });
 
-    /**
-     * Grammar cache acts as a template and is duplicated by the Transmogrifier and the Reader
-     * before use. It is safe to reuse a single instance.
-     */
-    private final GrammarCache exiGrammarCache;
-    private final EXIOptions exiOptions;
+    private final ThreadLocalSAXFactory exiFactory;
 
-    public NetconfEXICodec(final EXIOptions exiOptions) {
-        this.exiOptions = Preconditions.checkNotNull(exiOptions);
-        this.exiGrammarCache = createGrammarCache(exiOptions);
+    private NetconfEXICodec(final EXIFactory exiFactory) {
+        this.exiFactory = new ThreadLocalSAXFactory(requireNonNull(exiFactory));
     }
 
-    private static GrammarCache createGrammarCache(final EXIOptions exiOptions) {
-        short go = GrammarOptions.DEFAULT_OPTIONS;
-        if (exiOptions.getPreserveComments()) {
-            go = GrammarOptions.addCM(go);
-        }
-        if (exiOptions.getPreserveDTD()) {
-            go = GrammarOptions.addDTD(go);
-        }
-        if (exiOptions.getPreserveNS()) {
-            go = GrammarOptions.addNS(go);
-        }
-        if (exiOptions.getPreservePIs()) {
-            go = GrammarOptions.addPI(go);
-        }
-
-        return GRAMMAR_CACHES.getUnchecked(go);
+    public static NetconfEXICodec forParameters(final EXIParameters parameters) {
+        return CODECS.getUnchecked(parameters);
     }
 
-    EXIReader getReader() throws EXIOptionsException {
-        final EXIReader r = new EXIReader();
-        r.setPreserveLexicalValues(exiOptions.getPreserveLexicalValues());
-        r.setGrammarCache(exiGrammarCache);
-        r.setEntityResolver(ENTITY_RESOLVER);
-        return r;
+    ThreadLocalSAXDecoder getReader() throws EXIException {
+        final ThreadLocalSAXDecoder reader = exiFactory.createEXIReader();
+        reader.setEntityResolver(ENTITY_RESOLVER);
+        return reader;
     }
 
-    Transmogrifier getTransmogrifier() throws EXIOptionsException, TransmogrifierException {
-        final Transmogrifier transmogrifier = new Transmogrifier();
-        transmogrifier.setAlignmentType(exiOptions.getAlignmentType());
-        transmogrifier.setBlockSize(exiOptions.getBlockSize());
-        transmogrifier.setGrammarCache(exiGrammarCache);
-        transmogrifier.setOutputCookie(OUTPUT_EXI_COOKIE);
-        transmogrifier.setOutputOptions(HeaderOptionsOutputType.all);
-        transmogrifier.setResolveExternalGeneralEntities(false);
-        return transmogrifier;
+    SAXEncoder getWriter() throws EXIException {
+        return exiFactory.createEXIWriter();
     }
 }