Team2890/allwpilib
4
0
Fork 0
mirror of https://github.com/wpilibsuite/allwpilib synced 2026-06-21 01:01:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add ITable/NetworkTable GetKeys and GetSubTables accessors.

Browse Source
This commit is contained in:
Peter Johnson
2015-09-16 00:50:31 -07:00
parent 6cbc219427
commit c5d456f3a6
7 changed files with 141 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
java/src/edu/wpi/first/wpilibj/networktables/NetworkTable.java
View File

@@ -367,13 +367,47 @@ public class NetworkTable implements ITable, IRemote {
}
public boolean containsSubTable(String key) {
String subtablePrefix = path + key + PATH_SEPARATOR;
//List keys = node.getEntryStore().keys();
//for (int i = 0; i < keys.size(); ++i) {
// if (((String)keys.get(i)).startsWith(subtablePrefix))
// return true;
//}
return false;
EntryInfo[] entries = NetworkTablesJNI.getEntries(path + PATH_SEPARATOR + key + PATH_SEPARATOR, 0);
return entries.length != 0;
}
/**
* @param types bitmask of types; 0 is treated as a "don't care".
* @return keys currently in the table
*/
public Set<String> getKeys(int types) {
Set<String> keys = new HashSet<String>();
int prefixLen = path.length() + 1;
for (EntryInfo entry : NetworkTablesJNI.getEntries(path + PATH_SEPARATOR, types)) {
String relativeKey = entry.name.substring(prefixLen);
if (relativeKey.indexOf(PATH_SEPARATOR) != -1)
continue;
keys.add(relativeKey);
}
return keys;
}
/**
* @return keys currently in the table
*/
public Set<String> getKeys() {
return getKeys(0);
}
/**
* @return subtables currently in the table
*/
public Set<String> getSubTables() {
Set<String> keys = new HashSet<String>();
int prefixLen = path.length() + 1;
for (EntryInfo entry : NetworkTablesJNI.getEntries(path + PATH_SEPARATOR, 0)) {
String relativeKey = entry.name.substring(prefixLen);
int endSubTable = relativeKey.indexOf(PATH_SEPARATOR);
if (endSubTable == -1)
continue;
keys.add(relativeKey.substring(0, endSubTable));
}
return keys;
}
/**

2
java/src/edu/wpi/first/wpilibj/networktables/NetworkTablesJNI.java
View File

@@ -98,7 +98,7 @@ public class NetworkTablesJNI {
public static native void deleteEntry(String key);
public static native void deleteAllEntries();
// public static native EntryInfo[] getEntryInfo(String prefix, int types);
public static native EntryInfo[] getEntries(String prefix, int types);
public static native void flush();

17
java/src/edu/wpi/first/wpilibj/tables/ITable.java
View File

@@ -1,6 +1,7 @@
package edu.wpi.first.wpilibj.tables;
import java.util.NoSuchElementException;
import java.util.Set;
/**
@@ -30,6 +31,22 @@ public interface ITable {
*/
public ITable getSubTable(String key);
/**
* @param types bitmask of types; 0 is treated as a "don't care".
* @return keys currently in the table
*/
public Set<String> getKeys(int types);
/**
* @return keys currently in the table
*/
public Set<String> getKeys();
/**
* @return subtables currently in the table
*/
public Set<String> getSubTables();
/**
* Makes a key's value persistent through program restarts.
* The key cannot be null.