org.vertexium.Graph.getMetadata()方法的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中org.vertexium.Graph.getMetadata()方法的一些代码示例，展示了Graph.getMetadata()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Graph.getMetadata()方法的具体详情如下：
包路径：org.vertexium.Graph
类名称：Graph
方法名：getMetadata

Graph.getMetadata介绍

[英]Gets all metadata.
[中]获取所有元数据。

代码示例

代码示例来源：origin: org.visallo/visallo-core

public void checkVisalloGraphVersion(Graph g) {
  Object visalloGraphVersionObj = g.getMetadata(GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY);
  if (visalloGraphVersionObj == null) {
    g.setMetadata(GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY, GRAPH_METADATA_VISALLO_GRAPH_VERSION);
  } else if (visalloGraphVersionObj instanceof Integer) {
    Integer visalloGraphVersion = (Integer) visalloGraphVersionObj;
    if (!GRAPH_METADATA_VISALLO_GRAPH_VERSION.equals(visalloGraphVersion)) {
      throw new VisalloException("Invalid " + GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY + " expected " + GRAPH_METADATA_VISALLO_GRAPH_VERSION + " found " + visalloGraphVersion);
    }
  } else {
    throw new VisalloException("Invalid " + GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY + " expected Integer found " + visalloGraphVersionObj.getClass().getName());
  }
}

代码示例来源：origin: visallo/vertexium

private void saveHashToVisibility(Graph graph, String hash, String visibilityString) {
  String hashToVisibilityKey = getHashToVisibilityKey(hash);
  String foundVisibilityString = (String) graph.getMetadata(hashToVisibilityKey);
  if (foundVisibilityString == null) {
    graph.setMetadata(hashToVisibilityKey, visibilityString);
  }
}

代码示例来源：origin: org.vertexium/vertexium-test

@Test
public void testGraphMetadata() {
  List<GraphMetadataEntry> existingMetadata = toList(graph.getMetadata());
  graph.setMetadata("test1", "value1old");
  graph.setMetadata("test1", "value1");
  graph.setMetadata("test2", "value2");
  assertEquals("value1", graph.getMetadata("test1"));
  assertEquals("value2", graph.getMetadata("test2"));
  assertEquals(null, graph.getMetadata("missingProp"));
  List<GraphMetadataEntry> newMetadata = toList(graph.getMetadata());
  assertEquals(existingMetadata.size() + 2, newMetadata.size());
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch5

private void saveHashToVisibility(Graph graph, String hash, String visibilityString) {
  String hashToVisibilityKey = getHashToVisibilityKey(hash);
  String foundVisibilityString = (String) graph.getMetadata(hashToVisibilityKey);
  if (foundVisibilityString == null) {
    graph.setMetadata(hashToVisibilityKey, visibilityString);
  }
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch2

private void saveHashToVisibility(Graph graph, String hash, String visibilityString) {
  String hashToVisibilityKey = getHashToVisibilityKey(hash);
  String foundVisibilityString = (String) graph.getMetadata(hashToVisibilityKey);
  if (foundVisibilityString == null) {
    graph.setMetadata(hashToVisibilityKey, visibilityString);
  }
}

代码示例来源：origin: visallo/vertexium

@Test
public void testGraphMetadata() {
  List<GraphMetadataEntry> existingMetadata = toList(graph.getMetadata());
  graph.setMetadata("test1", "value1old");
  graph.setMetadata("test1", "value1");
  graph.setMetadata("test2", "value2");
  assertEquals("value1", graph.getMetadata("test1"));
  assertEquals("value2", graph.getMetadata("test2"));
  assertEquals(null, graph.getMetadata("missingProp"));
  List<GraphMetadataEntry> newMetadata = toList(graph.getMetadata());
  assertEquals(existingMetadata.size() + 2, newMetadata.size());
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch-singledocument

private void saveHashToVisibility(Graph graph, String hash, String visibilityString) {
  String hashToVisibilityKey = getHashToVisibilityKey(hash);
  String foundVisibilityString = (String) graph.getMetadata(hashToVisibilityKey);
  if (foundVisibilityString == null) {
    graph.setMetadata(hashToVisibilityKey, visibilityString);
  }
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch2

@Override
public Visibility getVisibilityFromHash(Graph graph, String visibilityHash) {
  String visibilityString = (String) graph.getMetadata(getHashToVisibilityKey(visibilityHash));
  if (visibilityString == null) {
    LOGGER.warn("Could not find visibility matching the hash \"%s\" in the metadata table.", visibilityHash);
    return null;
  }
  return new Visibility(visibilityString);
}

代码示例来源：origin: org.visallo/visallo-core

public void verifyVersion(int requiredVersion) {
  Object version = graph.getMetadata(VISALLO_VERSION_KEY);
  if (version == null) {
    writeVersion();
    return;
  }
  if (!(version instanceof Integer)) {
    throw new VisalloException("Invalid " + VISALLO_VERSION_KEY + " found. Expected Integer, found " + version.getClass().getName());
  }
  Integer versionInt = (Integer) version;
  if (versionInt != requiredVersion) {
    throw new VisalloException("Invalid " + VISALLO_VERSION_KEY + " found. Expected " + requiredVersion + ", found " + versionInt);
  }
  LOGGER.info("Visallo graph version verified: %d", versionInt);
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch5

@Override
public Visibility getVisibilityFromHash(Graph graph, String visibilityHash) {
  String visibilityString = (String) graph.getMetadata(getHashToVisibilityKey(visibilityHash));
  if (visibilityString == null) {
    LOGGER.warn("Could not find visibility matching the hash \"%s\" in the metadata table.", visibilityHash);
    return null;
  }
  return new Visibility(visibilityString);
}

代码示例来源：origin: visallo/vertexium

@Override
public Visibility getVisibilityFromHash(Graph graph, String visibilityHash) {
  String visibilityString = (String) graph.getMetadata(getHashToVisibilityKey(visibilityHash));
  if (visibilityString == null) {
    LOGGER.warn("Could not find visibility matching the hash \"%s\" in the metadata table.", visibilityHash);
    return null;
  }
  return new Visibility(visibilityString);
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch-singledocument

@Override
public Visibility getVisibilityFromHash(Graph graph, String visibilityHash) {
  String visibilityString = (String) graph.getMetadata(getHashToVisibilityKey(visibilityHash));
  if (visibilityString == null) {
    LOGGER.warn("Could not find visibility matching the hash \"%s\" in the metadata table.", visibilityHash);
    return null;
  }
  return new Visibility(visibilityString);
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch-singledocument

public String getHash(Graph graph, String propertyName, Visibility visibility) {
  String visibilityString = visibility.getVisibilityString();
  String propertyNameVisibilityToHashKey = getMetadataKey(propertyName, visibilityString);
  String hash = (String) graph.getMetadata(propertyNameVisibilityToHashKey);
  if (hash != null) {
    saveHashToVisibility(graph, hash, visibilityString);
    return hash;
  }
  hash = Hashing.murmur3_128().hashString(visibilityString, UTF8).toString();
  graph.setMetadata(propertyNameVisibilityToHashKey, hash);
  saveHashToVisibility(graph, hash, visibilityString);
  return hash;
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch2

public String getHash(Graph graph, String propertyName, Visibility visibility) {
  String visibilityString = visibility.getVisibilityString();
  String propertyNameVisibilityToHashKey = getMetadataKey(propertyName, visibilityString);
  String hash = (String) graph.getMetadata(propertyNameVisibilityToHashKey);
  if (hash != null) {
    saveHashToVisibility(graph, hash, visibilityString);
    return hash;
  }
  hash = Hashing.murmur3_128().hashString(visibilityString, UTF8).toString();
  graph.setMetadata(propertyNameVisibilityToHashKey, hash);
  saveHashToVisibility(graph, hash, visibilityString);
  return hash;
}

代码示例来源：origin: visallo/vertexium

public String getHash(Graph graph, String propertyName, Visibility visibility) {
  String visibilityString = visibility.getVisibilityString();
  String propertyNameVisibilityToHashKey = getMetadataKey(propertyName, visibilityString);
  String hash = (String) graph.getMetadata(propertyNameVisibilityToHashKey);
  if (hash != null) {
    saveHashToVisibility(graph, hash, visibilityString);
    return hash;
  }
  hash = Hashing.murmur3_128().hashString(visibilityString, UTF8).toString();
  graph.setMetadata(propertyNameVisibilityToHashKey, hash);
  saveHashToVisibility(graph, hash, visibilityString);
  return hash;
}

代码示例来源：origin: org.vertexium/vertexium-elasticsearch5

public String getHash(Graph graph, String propertyName, Visibility visibility) {
  String visibilityString = visibility.getVisibilityString();
  String propertyNameVisibilityToHashKey = getMetadataKey(propertyName, visibilityString);
  String hash = (String) graph.getMetadata(propertyNameVisibilityToHashKey);
  if (hash != null) {
    saveHashToVisibility(graph, hash, visibilityString);
    return hash;
  }
  hash = Hashing.murmur3_128().hashString(visibilityString, UTF8).toString();
  graph.setMetadata(propertyNameVisibilityToHashKey, hash);
  saveHashToVisibility(graph, hash, visibilityString);
  return hash;
}

代码示例来源：origin: org.visallo/visallo-tools-migration-core

@Override
protected final int run() throws Exception {
  graph = getGraph();
  try {
    Object visalloGraphVersionObj = graph.getMetadata(GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY);
    if (visalloGraphVersionObj == null) {
      throw new VisalloException("No graph metadata version set");
    } else if (visalloGraphVersionObj instanceof Integer) {
      Integer visalloGraphVersion = (Integer) visalloGraphVersionObj;
      if (getFinalGraphVersion().equals(visalloGraphVersion)) {
        throw new VisalloException("Migration has already completed. Graph version: " + visalloGraphVersion);
      } else if (!getNeededGraphVersion().equals(visalloGraphVersion)) {
        throw new VisalloException("Migration can only run from version " + getNeededGraphVersion() +
            ". Current graph version = " + visalloGraphVersion);
      }
    } else {
      throw new VisalloException("Unexpected value for graph version: " + visalloGraphVersionObj);
    }
    if (migrate(graph)) {
      graph.setMetadata(GRAPH_METADATA_VISALLO_GRAPH_VERSION_KEY, getFinalGraphVersion());
    }
    graph.flush();
    afterMigrate(graph);
    return 0;
  } finally {
    graph.shutdown();
  }
}

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