opendaylight/netconf/netconf-netty-util/src/main/java/org/opendaylight/controller/netconf/nettyutil/handler/exi/EXIParameters.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.netconf.nettyutil.handler.exi;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.controller.netconf.util.xml.XmlElement;
  12 import org.openexi.proc.common.AlignmentType;
  13 import org.openexi.proc.common.EXIOptions;
  14 import org.openexi.proc.common.EXIOptionsException;
  15
  16 public final class EXIParameters {
  17     private static final String EXI_PARAMETER_ALIGNMENT = "alignment";
  18     private static final String EXI_PARAMETER_BYTE_ALIGNED = "byte-aligned";
  19     private static final String EXI_PARAMETER_BIT_PACKED = "bit-packed";
  20     private static final String EXI_PARAMETER_COMPRESSED = "compressed";
  21     private static final String EXI_PARAMETER_PRE_COMPRESSION = "pre-compression";
  22
  23     private static final String EXI_PARAMETER_FIDELITY = "fidelity";
  24     private static final String EXI_FIDELITY_DTD = "dtd";
  25     private static final String EXI_FIDELITY_LEXICAL_VALUES = "lexical-values";
  26     private static final String EXI_FIDELITY_COMMENTS = "comments";
  27     private static final String EXI_FIDELITY_PIS = "pis";
  28     private static final String EXI_FIDELITY_PREFIXES = "prefixes";
  29
  30     private final EXIOptions options;
  31
  32     private EXIParameters(final EXIOptions options) {
  33         this.options = Preconditions.checkNotNull(options);
  34     }
  35
  36
  37     public static EXIParameters fromXmlElement(final XmlElement root) throws EXIOptionsException {
  38         final EXIOptions options =  new EXIOptions();
  39
  40         options.setAlignmentType(AlignmentType.bitPacked);
  41         if (root.getElementsByTagName(EXI_PARAMETER_ALIGNMENT).getLength() > 0) {
  42             if (root.getElementsByTagName(EXI_PARAMETER_BIT_PACKED).getLength() > 0) {
  43                 options.setAlignmentType(AlignmentType.bitPacked);
  44             } else if (root.getElementsByTagName(EXI_PARAMETER_BYTE_ALIGNED).getLength() > 0) {
  45                 options.setAlignmentType(AlignmentType.byteAligned);
  46             } else if (root.getElementsByTagName(EXI_PARAMETER_COMPRESSED).getLength() > 0) {
  47                 options.setAlignmentType(AlignmentType.compress);
  48             } else if (root.getElementsByTagName(EXI_PARAMETER_PRE_COMPRESSION).getLength() > 0) {
  49                 options.setAlignmentType(AlignmentType.preCompress);
  50             }
  51         }
  52
  53         if (root.getElementsByTagName(EXI_PARAMETER_FIDELITY).getLength() > 0) {
  54             if (root.getElementsByTagName(EXI_FIDELITY_DTD).getLength() > 0) {
  55                 options.setPreserveDTD(true);
  56             }
  57             if (root.getElementsByTagName(EXI_FIDELITY_LEXICAL_VALUES).getLength() > 0) {
  58                 options.setPreserveLexicalValues(true);
  59             }
  60             if (root.getElementsByTagName(EXI_FIDELITY_COMMENTS).getLength() > 0) {
  61                 options.setPreserveComments(true);
  62             }
  63             if (root.getElementsByTagName(EXI_FIDELITY_PIS).getLength() > 0) {
  64                 options.setPreservePIs(true);
  65             }
  66             if (root.getElementsByTagName(EXI_FIDELITY_PREFIXES).getLength() > 0) {
  67                 options.setPreserveNS(true);
  68             }
  69         }
  70         return new EXIParameters(options);
  71     }
  72
  73     public final EXIOptions getOptions() {
  74         return options;
  75     }
  76 }