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authorAnton Tananaev <anton.tananaev@gmail.com>2015-10-13 13:12:56 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2015-10-13 13:12:56 +1300
commit387b6286e543c830bf61b4b0e107e9ef4c7eb53d (patch)
tree3558f0a1317fbf6e36465eb6fd1f1f929f9013f0 /src/org/traccar/helper/Parser.java
parenta66a9ceda2b87b054136d073a9db440c29810520 (diff)
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Implement parser class for decoders
Diffstat (limited to 'src/org/traccar/helper/Parser.java')
-rw-r--r--src/org/traccar/helper/Parser.java70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/org/traccar/helper/Parser.java b/src/org/traccar/helper/Parser.java
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+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Parser {
+
+ private int position = 1;
+ private Matcher matcher;
+
+ public Parser(Pattern pattern, String input) {
+ matcher = pattern.matcher(input);
+ }
+
+ public boolean matches() {
+ return matcher.matches();
+ }
+
+ public boolean hasNext() {
+ if (matcher.group(position) != null) {
+ return true;
+ } else {
+ position++;
+ return false;
+ }
+ }
+
+ public String next() {
+ return matcher.group(position++);
+ }
+
+ public int nextInt() {
+ return Integer.parseInt(next());
+ }
+
+ public int nextInt(int radix) {
+ return Integer.parseInt(next(), radix);
+ }
+
+ public double nextDouble() {
+ return Double.parseDouble(next());
+ }
+
+ // Format: (degrees)(minutes)(hemisphere)
+ public double nextCoordinate() {
+ double coordinate = nextDouble();
+ coordinate += nextDouble() / 60;
+ String hemisphere = next();
+ if (hemisphere.equals("S") || hemisphere.equals("W")) {
+ coordinate = -coordinate;
+ }
+ return coordinate;
+ }
+
+}