Examples with Matcher java.util.regex.Matcher used on opensource projects

Example 26 with Matcher

use of java.util.regex.Matcher in project elasticsearch by elastic.

the class WordDelimiterTokenFilterFactory method parseTypes.

/**
     * parses a list of MappingCharFilter style rules into a custom byte[] type table
     */
static byte[] parseTypes(Collection<String> rules) {
    SortedMap<Character, Byte> typeMap = new TreeMap<>();
    for (String rule : rules) {
        Matcher m = typePattern.matcher(rule);
        if (!m.find())
            throw new RuntimeException("Invalid Mapping Rule : [" + rule + "]");
        String lhs = parseString(m.group(1).trim());
        Byte rhs = parseType(m.group(2).trim());
        if (lhs.length() != 1)
            throw new RuntimeException("Invalid Mapping Rule : [" + rule + "]. Only a single character is allowed.");
        if (rhs == null)
            throw new RuntimeException("Invalid Mapping Rule : [" + rule + "]. Illegal type.");
        typeMap.put(lhs.charAt(0), rhs);
    }
    // ensure the table is always at least as big as DEFAULT_WORD_DELIM_TABLE for performance
    byte[] types = new byte[Math.max(typeMap.lastKey() + 1, WordDelimiterIterator.DEFAULT_WORD_DELIM_TABLE.length)];
    for (int i = 0; i < types.length; i++) types[i] = WordDelimiterIterator.getType(i);
    for (Map.Entry<Character, Byte> mapping : typeMap.entrySet()) types[mapping.getKey()] = mapping.getValue();
    return types;
}

Example 27 with Matcher

use of java.util.regex.Matcher in project elasticsearch by elastic.

the class Translog method parseIdFromFileName.

/**
     * Extracts the translog generation from a file name.
     *
     * @throws IllegalArgumentException if the path doesn't match the expected pattern.
     */
public static long parseIdFromFileName(Path translogFile) {
    final String fileName = translogFile.getFileName().toString();
    final Matcher matcher = PARSE_STRICT_ID_PATTERN.matcher(fileName);
    if (matcher.matches()) {
        try {
            return Long.parseLong(matcher.group(1));
        } catch (NumberFormatException e) {
            throw new IllegalStateException("number formatting issue in a file that passed PARSE_STRICT_ID_PATTERN: " + fileName + "]", e);
        }
    }
    throw new IllegalArgumentException("can't parse id from file: " + fileName);
}

Example 28 with Matcher

use of java.util.regex.Matcher in project elasticsearch by elastic.

the class AggregatorFactories method parseAggregators.

private static AggregatorFactories.Builder parseAggregators(QueryParseContext parseContext, int level) throws IOException {
    Matcher validAggMatcher = VALID_AGG_NAME.matcher("");
    AggregatorFactories.Builder factories = new AggregatorFactories.Builder();
    XContentParser.Token token = null;
    XContentParser parser = parseContext.parser();
    while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
        if (token != XContentParser.Token.FIELD_NAME) {
            throw new ParsingException(parser.getTokenLocation(), "Unexpected token " + token + " in [aggs]: aggregations definitions must start with the name of the aggregation.");
        }
        final String aggregationName = parser.currentName();
        if (!validAggMatcher.reset(aggregationName).matches()) {
            throw new ParsingException(parser.getTokenLocation(), "Invalid aggregation name [" + aggregationName + "]. Aggregation names must be alpha-numeric and can only contain '_' and '-'");
        }
        token = parser.nextToken();
        if (token != XContentParser.Token.START_OBJECT) {
            throw new ParsingException(parser.getTokenLocation(), "Aggregation definition for [" + aggregationName + " starts with a [" + token + "], expected a [" + XContentParser.Token.START_OBJECT + "].");
        }
        BaseAggregationBuilder aggBuilder = null;
        AggregatorFactories.Builder subFactories = null;
        Map<String, Object> metaData = null;
        while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
            if (token != XContentParser.Token.FIELD_NAME) {
                throw new ParsingException(parser.getTokenLocation(), "Expected [" + XContentParser.Token.FIELD_NAME + "] under a [" + XContentParser.Token.START_OBJECT + "], but got a [" + token + "] in [" + aggregationName + "]", parser.getTokenLocation());
            }
            final String fieldName = parser.currentName();
            token = parser.nextToken();
            if (token == XContentParser.Token.START_OBJECT) {
                switch(fieldName) {
                    case "meta":
                        metaData = parser.map();
                        break;
                    case "aggregations":
                    case "aggs":
                        if (subFactories != null) {
                            throw new ParsingException(parser.getTokenLocation(), "Found two sub aggregation definitions under [" + aggregationName + "]");
                        }
                        subFactories = parseAggregators(parseContext, level + 1);
                        break;
                    default:
                        if (aggBuilder != null) {
                            throw new ParsingException(parser.getTokenLocation(), "Found two aggregation type definitions in [" + aggregationName + "]: [" + aggBuilder.getType() + "] and [" + fieldName + "]");
                        }
                        aggBuilder = parser.namedObject(BaseAggregationBuilder.class, fieldName, new AggParseContext(aggregationName, parseContext));
                }
            } else {
                throw new ParsingException(parser.getTokenLocation(), "Expected [" + XContentParser.Token.START_OBJECT + "] under [" + fieldName + "], but got a [" + token + "] in [" + aggregationName + "]");
            }
        }
        if (aggBuilder == null) {
            throw new ParsingException(parser.getTokenLocation(), "Missing definition for aggregation [" + aggregationName + "]", parser.getTokenLocation());
        } else {
            if (metaData != null) {
                aggBuilder.setMetaData(metaData);
            }
            if (subFactories != null) {
                aggBuilder.subAggregations(subFactories);
            }
            if (aggBuilder instanceof AggregationBuilder) {
                factories.addAggregator((AggregationBuilder) aggBuilder);
            } else {
                factories.addPipelineAggregator((PipelineAggregationBuilder) aggBuilder);
            }
        }
    }
    return factories;
}

Example 29 with Matcher

use of java.util.regex.Matcher in project buck by facebook.

the class AndroidBinaryIntegrationTest method verifyTrimmedRDotJava.

private void verifyTrimmedRDotJava(ImmutableSet<String> expected) throws IOException {
    List<String> lines = filesystem.readLines(Paths.get("buck-out/gen/apps/multidex/disassemble_app_r_dot_java/all_r_fields.smali"));
    ImmutableSet.Builder<String> found = ImmutableSet.builder();
    for (String line : lines) {
        Matcher m = SMALI_STATIC_FINAL_INT_PATTERN.matcher(line);
        assertTrue("Could not match line: " + line, m.matches());
        assertThat(m.group(1), IsIn.in(expected));
        found.add(m.group(1));
    }
    assertEquals(expected, found.build());
}

Example 30 with Matcher

use of java.util.regex.Matcher in project buck by facebook.

the class AndroidPlatformTargetTest method testPlatformTargetRegex.

private void testPlatformTargetRegex(String input, boolean matches, String id) {
    Matcher matcher = AndroidPlatformTarget.PLATFORM_TARGET_PATTERN.matcher(input);
    assertEquals(matches, matcher.matches());
    if (matches) {
        assertEquals(id, matcher.group(1));
    }
}