@Override
public RecordReader<Text, Text> getRecordReader(InputSplit split, JobConf job, Reporter reporter)
throws IOException {
if (schemas == null) {
loadSchemas(job);
}
FileSplit fs = (FileSplit) split;
Schema schema = null;
if (schemas.size() == 1) {
schema = schemas.get(0);
} else {
// Need to figure out which schema we're loading
String current = fs.getPath().toString();
int index = -1;
int bestMatchLength = -1;
for (int i = 0; i < inputPaths.length; i++) {
int match = Strings.commonPrefix(current, inputPaths[i]).length();
if (match > bestMatchLength) {
bestMatchLength = match;
index = i;
}
}
schema = schemas.get(index);
}
return new AvroAsJSONRecordReader(schema, job, fs);
}
@Nonnull
public static String commonPrefix(@Nonnull final String... strs) {
Preconditions.checkArgument(strs.length > 0, "Must have at least 1 string %s", strs);
String common = strs[0];
for (int i = 1; i < strs.length; i++) {
common = com.google.common.base.Strings.commonPrefix(common, strs[i]);
}
return common;
}
@Test
public void testConstructSelfUri() {
String id = UUID.randomUUID().toString();
URI self = InstanceResource.constructSelfUri(INSTANCE_URI_INFO, id);
assertEquals(id, Strings.commonSuffix(id, self.getPath()));
assertEquals(
INSTANCE_URI_INFO.getAbsolutePath().toString(),
Strings.commonPrefix(INSTANCE_URI_INFO.getAbsolutePath().toString(), self.toString()));
}
/**
* Returns the longest string {@code prefix} such that {@code a.toString().startsWith(prefix) &&
* b.toString().startsWith(prefix)}, taking care not to split surrogate pairs. If {@code a} and
* {@code b} have no common prefix, returns the empty string.
*
* @since 11.0
* @see Strings#commonPrefix(CharSequence, CharSequence)
*/
@Beta
public static String commonPrefix(final CharSequence a, final CharSequence b) {
return Strings.commonPrefix(a, b);
}
