generate-map-reduce-couchbase/src/main/java/org/gcube/dbtest/dbtest.java

134 lines
4.6 KiB
Java

package org.gcube.dbtest;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.couchbase.client.java.Bucket;
import com.couchbase.client.java.Cluster;
import com.couchbase.client.java.CouchbaseCluster;
import com.couchbase.client.java.bucket.BucketManager;
import com.couchbase.client.java.env.CouchbaseEnvironment;
import com.couchbase.client.java.env.DefaultCouchbaseEnvironment;
import com.couchbase.client.java.error.DesignDocumentAlreadyExistsException;
import com.couchbase.client.java.view.DefaultView;
import com.couchbase.client.java.view.DesignDocument;
import com.couchbase.client.java.view.View;
public class dbtest {
protected static final String DB = "AggregatedServiceUsageRecord";
protected static final String USAGE_RECORD_TYPE = "ServiceUsageRecord";
protected static final String URL = "http://couchbase01-d-d4s.d4science.org";
protected static final String PASSWORD = "accounting";
/* The environment configuration */
protected static final CouchbaseEnvironment ENV = DefaultCouchbaseEnvironment.builder().queryEnabled(true).build();
public static void main(String[] args) throws Exception {
createMapReduceCouchBase();
createExtraMapReduceCouchBase();
}
protected static void createMapReduceCouchBase() throws Exception {
Cluster cluster = CouchbaseCluster.create(ENV, URL);
Bucket bucket = cluster.openBucket(DB, PASSWORD);
BucketManager bucketManager = bucket.bucketManager();
File currentDirectory = new File(".");
File srcDirectory = new File(currentDirectory, "src");
File mainDirectory = new File(srcDirectory, "main");
File resourcesDirectory = new File(mainDirectory, "resources");
File mapReduceDirectory = new File(resourcesDirectory, "MapReduce");
File file = new File(mapReduceDirectory, USAGE_RECORD_TYPE);
File[] filesInDir = file.listFiles();
Arrays.sort(filesInDir);
Map<String, List<View>> views = new HashMap<String, List<View>>();
for (File fs : filesInDir) {
String viewName = fs.getName().split("__")[0];
String mapReduceName = fs.getName();
File mapFile = new File(fs, "map.js");
File reduceFile = new File(fs, "reduce.js");
String mapContent = new String(Files.readAllBytes(Paths.get(mapFile.toURI())));
String reduceContent = new String(Files.readAllBytes(Paths.get(reduceFile.toURI())));
View view = DefaultView.create(mapReduceName, mapContent, reduceContent);
if (!views.containsKey(viewName)){
views.put(viewName, new ArrayList<View>());
}
views.get(viewName).add(view);
}
for (Map.Entry<String, List<View>> entry : views.entrySet()) {
String viewName = entry.getKey();
DesignDocument designDoc = DesignDocument.create(viewName, entry.getValue());
bucketManager.insertDesignDocument(designDoc);
}
cluster.disconnect();
}
protected static void createExtraMapReduceCouchBase() throws Exception {
Cluster cluster = CouchbaseCluster.create(ENV, URL);
Bucket bucket = cluster.openBucket(DB, PASSWORD);
BucketManager bucketManager = bucket.bucketManager();
File currentDirectory = new File(".");
File srcDirectory = new File(currentDirectory, "src");
File mainDirectory = new File(srcDirectory, "main");
File resourcesDirectory = new File(mainDirectory, "resources");
File mapReduceDirectory = new File(resourcesDirectory, "MapReduce");
File file = new File(mapReduceDirectory, "extra" + USAGE_RECORD_TYPE);
Map<String, List<View>> views = new HashMap<String, List<View>>();
for (File f : file.listFiles()){
String viewName = f.getName();
if (!views.containsKey(viewName)){
views.put(viewName, new ArrayList<View>());
}
for(File fs : f.listFiles()){
String mapReduceName = fs.getName();
File mapFile = new File(fs, "map.js");
File reduceFile = new File(fs, "reduce.js");
String mapContent = new String(Files.readAllBytes(Paths.get(mapFile.toURI())));
String reduceContent = new String(Files.readAllBytes(Paths.get(reduceFile.toURI())));
View view = DefaultView.create(mapReduceName, mapContent, reduceContent);
views.get(viewName).add(view);
}
}
for (Map.Entry<String, List<View>> entry : views.entrySet()) {
String viewName = entry.getKey();
DesignDocument designDoc = DesignDocument.create(viewName, entry.getValue());
try{
bucketManager.insertDesignDocument(designDoc);
}catch (DesignDocumentAlreadyExistsException e) {
System.out.println(viewName + " Already Exists");
}
}
cluster.disconnect();
}
}