87 lines
2.7 KiB
Java
87 lines
2.7 KiB
Java
package crosby.binary;
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import crosby.binary.*;
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import crosby.binary.Osmformat.*;
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import crosby.binary.file.*;
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import java.io.*;
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import java.util.List;
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/**
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* Demonstrates how to read a file. Reads sample.pbf from the resources folder
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* and prints details about it to the standard output.
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*
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* @author Michael Tandy
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*/
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public class ReadFileExample {
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public static void main(String[] args) throws Exception {
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InputStream input = ReadFileExample.class.getResourceAsStream("/sample.pbf");
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BlockReaderAdapter brad = new TestBinaryParser();
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new BlockInputStream(input, brad).process();
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}
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private static class TestBinaryParser extends BinaryParser {
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@Override
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protected void parseRelations(List<Relation> rels) {
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if (!rels.isEmpty())
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System.out.println("Got some relations to parse.");
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Relation r = null;
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}
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@Override
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protected void parseDense(DenseNodes nodes) {
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long lastId=0;
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long lastLat=0;
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long lastLon=0;
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for (int i=0 ; i<nodes.getIdCount() ; i++) {
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lastId += nodes.getId(i);
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lastLat += nodes.getLat(i);
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lastLon += nodes.getLon(i);
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System.out.printf("Dense node, ID %d @ %.6f,%.6f\n",
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lastId,parseLat(lastLat),parseLon(lastLon));
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}
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}
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@Override
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protected void parseNodes(List<Node> nodes) {
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for (Node n : nodes) {
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System.out.printf("Regular node, ID %d @ %.6f,%.6f\n",
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n.getId(),parseLat(n.getLat()),parseLon(n.getLon()));
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}
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}
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@Override
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protected void parseWays(List<Way> ways) {
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for (Way w : ways) {
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System.out.println("Way ID " + w.getId());
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StringBuilder sb = new StringBuilder();
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sb.append(" Nodes: ");
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long lastRef = 0;
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for (Long ref : w.getRefsList()) {
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lastRef+= ref;
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sb.append(lastRef).append(" ");
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}
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sb.append("\n Key=value pairs: ");
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for (int i=0 ; i<w.getKeysCount() ; i++) {
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sb.append(getStringById(w.getKeys(i))).append("=")
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.append(getStringById(w.getVals(i))).append(" ");
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}
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System.out.println(sb.toString());
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}
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}
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@Override
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protected void parse(HeaderBlock header) {
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System.out.println("Got header block.");
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}
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public void complete() {
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System.out.println("Complete!");
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}
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}
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}
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