Remove opendaylight directory
[netconf.git] / netconf / netconf-netty-util / src / main / java / org / opendaylight / netconf / nettyutil / handler / exi / EXIParameters.java
diff --git a/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/exi/EXIParameters.java b/netconf/netconf-netty-util/src/main/java/org/opendaylight/netconf/nettyutil/handler/exi/EXIParameters.java
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+/*
+ * Copyright (c) 2013 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.netconf.nettyutil.handler.exi;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.config.util.xml.XmlElement;
+import org.openexi.proc.common.AlignmentType;
+import org.openexi.proc.common.EXIOptions;
+import org.openexi.proc.common.EXIOptionsException;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class EXIParameters {
+    private static final String EXI_PARAMETER_ALIGNMENT = "alignment";
+    static final String EXI_PARAMETER_BYTE_ALIGNED = "byte-aligned";
+    static final String EXI_PARAMETER_BIT_PACKED = "bit-packed";
+    static final String EXI_PARAMETER_COMPRESSED = "compressed";
+    static final String EXI_PARAMETER_PRE_COMPRESSION = "pre-compression";
+
+    private static final String EXI_PARAMETER_FIDELITY = "fidelity";
+    private static final String EXI_FIDELITY_DTD = "dtd";
+    private static final String EXI_FIDELITY_LEXICAL_VALUES = "lexical-values";
+    private static final String EXI_FIDELITY_COMMENTS = "comments";
+    private static final String EXI_FIDELITY_PIS = "pis";
+    private static final String EXI_FIDELITY_PREFIXES = "prefixes";
+
+    private final EXIOptions options;
+    private static final Logger LOG = LoggerFactory.getLogger(EXIParameters.class);
+
+    private EXIParameters(final EXIOptions options) {
+        this.options = Preconditions.checkNotNull(options);
+    }
+
+
+    public static EXIParameters fromXmlElement(final XmlElement root) throws EXIOptionsException {
+        final EXIOptions options =  new EXIOptions();
+        final NodeList alignmentElements = root.getElementsByTagName(EXI_PARAMETER_ALIGNMENT);
+        if (alignmentElements.getLength() > 0) {
+            final Element alignmentElement = (Element) alignmentElements.item(0);
+            final String alignmentTextContent = alignmentElement.getTextContent().trim();
+
+            switch (alignmentTextContent) {
+            case EXI_PARAMETER_BYTE_ALIGNED:
+                options.setAlignmentType(AlignmentType.byteAligned);
+                break;
+            case EXI_PARAMETER_COMPRESSED:
+                options.setAlignmentType(AlignmentType.compress);
+                break;
+            case EXI_PARAMETER_PRE_COMPRESSION:
+                options.setAlignmentType(AlignmentType.preCompress);
+                break;
+            default:
+                LOG.warn("Unexpected value in alignmentTextContent: {} , using default value", alignmentTextContent);
+            case EXI_PARAMETER_BIT_PACKED:
+                options.setAlignmentType(AlignmentType.bitPacked);
+                break;
+            }
+        } else {
+            options.setAlignmentType(AlignmentType.bitPacked);
+        }
+
+        if (root.getElementsByTagName(EXI_PARAMETER_FIDELITY).getLength() > 0) {
+            if (root.getElementsByTagName(EXI_FIDELITY_DTD).getLength() > 0) {
+                options.setPreserveDTD(true);
+            }
+            if (root.getElementsByTagName(EXI_FIDELITY_LEXICAL_VALUES).getLength() > 0) {
+                options.setPreserveLexicalValues(true);
+            }
+            if (root.getElementsByTagName(EXI_FIDELITY_COMMENTS).getLength() > 0) {
+                options.setPreserveComments(true);
+            }
+            if (root.getElementsByTagName(EXI_FIDELITY_PIS).getLength() > 0) {
+                options.setPreservePIs(true);
+            }
+            if (root.getElementsByTagName(EXI_FIDELITY_PREFIXES).getLength() > 0) {
+                options.setPreserveNS(true);
+            }
+        }
+        return new EXIParameters(options);
+    }
+
+    public EXIOptions getOptions() {
+        return options;
+    }
+}