Merge "Cleanup: Remove passing around of DataPersistenceProvider"
[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / md / sal / rest / schema / SchemaRetrievalServiceImpl.java
1 /*
2  * Copyright (c) 2014 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.md.sal.rest.schema;
9
10 import com.google.common.base.Splitter;
11 import com.google.common.collect.Iterables;
12 import java.text.ParseException;
13 import java.util.Date;
14 import java.util.Iterator;
15 import org.opendaylight.controller.md.sal.rest.common.RestconfValidationUtils;
16 import org.opendaylight.controller.sal.restconf.impl.ControllerContext;
17 import org.opendaylight.controller.sal.restconf.impl.InstanceIdentifierContext;
18 import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
19 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorTag;
20 import org.opendaylight.controller.sal.restconf.impl.RestconfError.ErrorType;
21 import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
22 import org.opendaylight.yangtools.yang.model.api.Module;
23 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
24
25 public class SchemaRetrievalServiceImpl implements SchemaRetrievalService {
26
27     private final ControllerContext salContext;
28
29     private static final Splitter SLASH_SPLITTER = Splitter.on("/");
30     private static final String MOUNT_ARG = ControllerContext.MOUNT;
31
32     public SchemaRetrievalServiceImpl(final ControllerContext controllerContext) {
33         salContext = controllerContext;
34     }
35
36
37     @Override
38     public SchemaExportContext getSchema(final String mountAndModule) {
39         final SchemaContext schemaContext;
40         final Iterable<String> pathComponents = SLASH_SPLITTER.split(mountAndModule);
41         final Iterator<String> componentIter = pathComponents.iterator();
42         if(!Iterables.contains(pathComponents, MOUNT_ARG)) {
43             schemaContext = salContext.getGlobalSchema();
44         } else {
45             final StringBuilder pathBuilder = new StringBuilder();
46             while(componentIter.hasNext()) {
47                 final String current = componentIter.next();
48                 // It is argument, not last element.
49                 if(pathBuilder.length() != 0) {
50                         pathBuilder.append("/");
51                 }
52                 pathBuilder.append(current);
53                 if(MOUNT_ARG.equals(current)) {
54                     // We stop right at mountpoint, last two arguments should
55                     // be module name and revision
56                     break;
57                 }
58             }
59             schemaContext = getMountSchemaContext(pathBuilder.toString());
60
61         }
62
63         RestconfValidationUtils.checkDocumentedError(componentIter.hasNext(),
64                 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, "Module name must be supplied.");
65         final String moduleName = componentIter.next();
66         RestconfValidationUtils.checkDocumentedError(componentIter.hasNext(),
67                 ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE, "Revision date must be supplied.");
68         final String revisionString = componentIter.next();
69         return getExportUsingNameAndRevision(schemaContext, moduleName, revisionString);
70     }
71
72     private SchemaExportContext getExportUsingNameAndRevision(final SchemaContext schemaContext, final String moduleName,
73             final String revisionStr) {
74         try {
75             final Date revision = SimpleDateFormatUtil.getRevisionFormat().parse(revisionStr);
76             final Module module = schemaContext.findModuleByName(moduleName, revision);
77             return new SchemaExportContext(schemaContext, RestconfValidationUtils.checkNotNullDocumented(module, moduleName));
78         } catch (final ParseException e) {
79             throw new RestconfDocumentedException("Supplied revision is not in expected date format YYYY-mm-dd", e);
80         }
81     }
82
83     private SchemaContext getMountSchemaContext(final String identifier) {
84         final InstanceIdentifierContext<?> mountContext = salContext.toMountPointIdentifier(identifier);
85         return mountContext.getSchemaContext();
86     }
87
88
89
90 }
91

©2013 OpenDaylight, A Linux Foundation Collaborative Project. All Rights Reserved.
OpenDaylight is a registered trademark of The OpenDaylight Project, Inc.
Linux Foundation and OpenDaylight are registered trademarks of the Linux Foundation.
Linux is a registered trademark of Linus Torvalds.