1 |
39616
|
claudio.at
|
package eu.dnetlib.data.mapreduce.hbase.dedup.cc;
|
2 |
|
|
|
3 |
|
|
import java.io.DataInput;
|
4 |
|
|
import java.io.DataOutput;
|
5 |
|
|
import java.io.IOException;
|
6 |
|
|
import java.lang.reflect.Type;
|
7 |
|
|
import java.util.TreeSet;
|
8 |
|
|
|
9 |
|
|
import com.google.gson.*;
|
10 |
|
|
import org.apache.hadoop.io.Text;
|
11 |
|
|
import org.apache.hadoop.io.Writable;
|
12 |
|
|
|
13 |
|
|
/**
|
14 |
|
|
* Created by claudio on 14/10/15.
|
15 |
|
|
*/
|
16 |
|
|
public final class VertexWritable implements Writable, Cloneable {
|
17 |
|
|
|
18 |
|
|
private Text vertexId;
|
19 |
|
|
private TreeSet<Text> edges;
|
20 |
|
|
private boolean activated;
|
21 |
|
|
|
22 |
|
|
public VertexWritable() {
|
23 |
|
|
super();
|
24 |
|
|
}
|
25 |
|
|
|
26 |
|
|
public VertexWritable(Text minimalVertexId) {
|
27 |
|
|
super();
|
28 |
|
|
this.vertexId = minimalVertexId;
|
29 |
|
|
}
|
30 |
|
|
|
31 |
|
|
// true if updated
|
32 |
|
|
public boolean checkAndSetMinimalVertex(Text id) {
|
33 |
|
|
if (vertexId == null) {
|
34 |
|
|
vertexId = id;
|
35 |
|
|
return true;
|
36 |
|
|
} else {
|
37 |
|
|
|
38 |
|
|
if (id.compareTo(vertexId) < 0) {
|
39 |
|
|
vertexId = id;
|
40 |
|
|
return true;
|
41 |
|
|
}
|
42 |
|
|
}
|
43 |
|
|
return false;
|
44 |
|
|
}
|
45 |
|
|
|
46 |
|
|
public boolean isMessage() {
|
47 |
|
|
return (edges == null);
|
48 |
|
|
}
|
49 |
|
|
|
50 |
|
|
public VertexWritable makeMessage() {
|
51 |
|
|
return new VertexWritable(vertexId);
|
52 |
|
|
}
|
53 |
|
|
|
54 |
|
|
public void addVertex(Text id) {
|
55 |
|
|
if (edges == null) {
|
56 |
|
|
edges = new TreeSet<Text>();
|
57 |
|
|
}
|
58 |
|
|
edges.add(id);
|
59 |
|
|
}
|
60 |
|
|
|
61 |
|
|
@Override
|
62 |
|
|
public void write(DataOutput out) throws IOException {
|
63 |
|
|
vertexId.write(out);
|
64 |
|
|
if (edges == null) {
|
65 |
|
|
out.writeInt(-1);
|
66 |
|
|
} else {
|
67 |
|
|
out.writeInt(edges.size());
|
68 |
|
|
for (Text l : edges) {
|
69 |
|
|
l.write(out);
|
70 |
|
|
}
|
71 |
|
|
}
|
72 |
|
|
out.writeBoolean(activated);
|
73 |
|
|
}
|
74 |
|
|
|
75 |
|
|
@Override
|
76 |
|
|
public void readFields(DataInput in) throws IOException {
|
77 |
|
|
vertexId = new Text();
|
78 |
|
|
vertexId.readFields(in);
|
79 |
|
|
int length = in.readInt();
|
80 |
|
|
if (length > -1) {
|
81 |
|
|
edges = new TreeSet<Text>();
|
82 |
|
|
for (int i = 0; i < length; i++) {
|
83 |
|
|
Text temp = new Text();
|
84 |
|
|
temp.readFields(in);
|
85 |
|
|
edges.add(temp);
|
86 |
|
|
}
|
87 |
|
|
} else {
|
88 |
|
|
edges = null;
|
89 |
|
|
}
|
90 |
|
|
activated = in.readBoolean();
|
91 |
|
|
}
|
92 |
|
|
|
93 |
|
|
@Override
|
94 |
|
|
public String toString() {
|
95 |
|
|
StringBuilder sb = new StringBuilder();
|
96 |
|
|
sb.append("VertexWritable [minimalVertexId=").
|
97 |
|
|
append(vertexId).
|
98 |
|
|
append(", pointsTo=").
|
99 |
|
|
append(edges).
|
100 |
|
|
append("]");
|
101 |
|
|
return sb.toString();
|
102 |
|
|
}
|
103 |
|
|
|
104 |
|
|
public static VertexWritable fromJSON(String json) {
|
105 |
|
|
final GsonBuilder builder = new GsonBuilder();
|
106 |
|
|
builder.registerTypeAdapter(VertexWritable.class, new JsonDeserializer<VertexWritable>() {
|
107 |
|
|
|
108 |
|
|
@Override
|
109 |
|
|
public VertexWritable deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) throws JsonParseException {
|
110 |
|
|
|
111 |
|
|
JsonObject jo = json.getAsJsonObject();
|
112 |
|
|
|
113 |
|
|
VertexWritable vertexWritable = new VertexWritable();
|
114 |
|
|
vertexWritable.setVertexId(new Text(jo.get("vertexId").getAsString()));
|
115 |
|
|
vertexWritable.setActivated(jo.get("activated").getAsBoolean());
|
116 |
|
|
|
117 |
|
|
TreeSet<Text> edges = new TreeSet<Text>();
|
118 |
|
|
|
119 |
|
|
for(JsonElement e : jo.get("edges").getAsJsonArray()) {
|
120 |
|
|
edges.add(new Text(e.getAsString()));
|
121 |
|
|
}
|
122 |
|
|
vertexWritable.setEdges(edges);
|
123 |
|
|
return vertexWritable;
|
124 |
|
|
}
|
125 |
|
|
});
|
126 |
|
|
return builder.create().fromJson(json, VertexWritable.class);
|
127 |
|
|
|
128 |
|
|
}
|
129 |
|
|
|
130 |
|
|
public String toJSON() {
|
131 |
|
|
|
132 |
|
|
final GsonBuilder builder = new GsonBuilder();
|
133 |
|
|
builder.registerTypeAdapter(VertexWritable.class, new JsonSerializer<VertexWritable>() {
|
134 |
|
|
@Override
|
135 |
|
|
public JsonElement serialize(final VertexWritable src, final Type typeOfSrc, final JsonSerializationContext context) {
|
136 |
|
|
JsonObject res = new JsonObject();
|
137 |
|
|
res.addProperty("vertexId", getVertexId().toString());
|
138 |
|
|
res.addProperty("activated", isActivated());
|
139 |
|
|
|
140 |
|
|
JsonArray edges = new JsonArray();
|
141 |
|
|
if (!isMessage()) {
|
142 |
|
|
for (Text edge : getEdges()) {
|
143 |
|
|
edges.add(new JsonPrimitive(edge.toString()));
|
144 |
|
|
}
|
145 |
|
|
}
|
146 |
|
|
res.add("edges", edges);
|
147 |
|
|
return res;
|
148 |
|
|
}
|
149 |
|
|
});
|
150 |
|
|
|
151 |
|
|
return builder.create().toJson(this);
|
152 |
|
|
}
|
153 |
|
|
|
154 |
|
|
@Override
|
155 |
|
|
protected VertexWritable clone() {
|
156 |
|
|
VertexWritable toReturn = new VertexWritable(new Text(vertexId.toString()));
|
157 |
|
|
if (edges != null) {
|
158 |
|
|
toReturn.edges = new TreeSet<Text>();
|
159 |
|
|
for (Text l : edges) {
|
160 |
|
|
toReturn.edges.add(new Text(l.toString()));
|
161 |
|
|
}
|
162 |
|
|
}
|
163 |
|
|
return toReturn;
|
164 |
|
|
}
|
165 |
|
|
|
166 |
|
|
public boolean isActivated() {
|
167 |
|
|
return activated;
|
168 |
|
|
}
|
169 |
|
|
|
170 |
|
|
public void setActivated(boolean activated) {
|
171 |
|
|
this.activated = activated;
|
172 |
|
|
}
|
173 |
|
|
|
174 |
|
|
public Text getVertexId() {
|
175 |
|
|
return vertexId;
|
176 |
|
|
}
|
177 |
|
|
|
178 |
|
|
public void setVertexId(Text vertexId) {
|
179 |
|
|
this.vertexId = vertexId;
|
180 |
|
|
}
|
181 |
|
|
|
182 |
|
|
public TreeSet<Text> getEdges() {
|
183 |
|
|
return edges;
|
184 |
|
|
}
|
185 |
|
|
|
186 |
|
|
public void setEdges(TreeSet<Text> edges) {
|
187 |
|
|
this.edges = edges;
|
188 |
|
|
}
|
189 |
|
|
|
190 |
|
|
}
|