Delete netconf

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

diff --git a/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfEXICodec.java b/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfEXICodec.java
deleted file mode 100644 (file)
index bbfa7dc..0000000
--- a/opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/NetconfEXICodec.java
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (c) 2014, 2015 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.controller.netconf.nettyutil.handler;
-
-import com.google.common.base.Preconditions;
-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.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();
-        }
-    };
-
-    /**
-     * 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>() {
-        @Override
-        public GrammarCache load(final Short key) {
-            return new GrammarCache(key);
-        }
-    });
-
-    /**
-     * 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;
-
-    public NetconfEXICodec(final EXIOptions exiOptions) {
-        this.exiOptions = Preconditions.checkNotNull(exiOptions);
-        this.exiGrammarCache = createGrammarCache(exiOptions);
-    }
-
-    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);
-    }
-
-    EXIReader getReader() throws EXIOptionsException {
-        final EXIReader r = new EXIReader();
-        r.setPreserveLexicalValues(exiOptions.getPreserveLexicalValues());
-        r.setGrammarCache(exiGrammarCache);
-        r.setEntityResolver(ENTITY_RESOLVER);
-        return r;
-    }
-
-    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;
-    }
-}