Add DB implementation
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@ -7,8 +7,8 @@ INDEX VERSION 1.131+/home/max/src/cs448/p1/.metadata/.plugins/org.eclipse.jdt.co
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629469267.index
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1844288107.index
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BIN
p1/data.db
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p1/data.db
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2
p1/run
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p1/run
@ -1,3 +1,3 @@
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#! /bin/bash
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java -cp ./target/cs448p1-1.0-SNAPSHOT-jar-with-dependencies.jar -Xmx44m cs448.App "$1" "$2" "$3"
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java -cp ./target/cs448p1-1.0-SNAPSHOT-jar-with-dependencies.jar -Xmx32m cs448.App "$1" "$2" "$3"
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@ -2,6 +2,7 @@ package cs448;
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import org.mapdb.DB;
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import org.mapdb.DBMaker;
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import org.mapdb.Serializer;
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import java.io.IOException;
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import java.io.BufferedReader;
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@ -20,7 +21,7 @@ public class project1 {
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DB db = DBMaker.fileDB(dbfile).make();
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// use this for MapDB storage
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ConcurrentMap mapdb = db.hashMap("map").make();
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ConcurrentMap<String, String> mapdb = db.hashMap("map", Serializer.STRING, Serializer.STRING).make();
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void load_mainmemory(String file_path) throws IOException {
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try (BufferedReader tsvFile = new BufferedReader(new FileReader(file_path))) {
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@ -49,7 +50,29 @@ public class project1 {
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}
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void load_mapdb(String file_path) throws IOException{
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/** Put your code here **/
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try (BufferedReader tsvFile = new BufferedReader(new FileReader(file_path))) {
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String line = "";
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String value = "";
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while ((line = tsvFile.readLine()) != null ) {
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String[] parts = line.split("\t");
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for (int i = 1; i < parts.length; i++) {
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if (i == parts.length) {
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value += parts[i];
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} else {
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value += parts[i] + "\t";
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}
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parts[i] = null;
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}
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mapdb.put(parts[0], value);
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parts[0] = null;
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line = null;
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value = null;
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}
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} catch (IOException e) {
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throw e;
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}
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}
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String select_file(String key, String file_path) throws IOException{
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@ -81,8 +104,8 @@ public class project1 {
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String select_mainmemory(String key){
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return mm_map.get(key);
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}
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String select_mapdb(String key){
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/** Put your code here **/
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return "";
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return mapdb.get(key);
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}
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}
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