io.druid.query.search.FragmentSearchQuerySpec.java Source code

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Here is the source code for io.druid.query.search.FragmentSearchQuerySpec.java

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/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets licenses this file
 * to you 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 io.druid.query.search;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.druid.java.util.common.StringUtils;

import javax.annotation.Nullable;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

/**
 */
public class FragmentSearchQuerySpec implements SearchQuerySpec {
    private static final byte CACHE_TYPE_ID = 0x2;

    private final List<String> values;
    private final boolean caseSensitive;

    private final String[] target;

    public FragmentSearchQuerySpec(List<String> values) {
        this(values, false);
    }

    @JsonCreator
    public FragmentSearchQuerySpec(@JsonProperty("values") List<String> values,
            @JsonProperty("caseSensitive") boolean caseSensitive) {
        this.values = values;
        this.caseSensitive = caseSensitive;
        Set<String> set = new TreeSet<>();
        if (values != null) {
            for (String value : values) {
                set.add(value);
            }
        }
        target = set.toArray(new String[set.size()]);
    }

    @JsonProperty
    public List<String> getValues() {
        return values;
    }

    @JsonProperty
    public boolean isCaseSensitive() {
        return caseSensitive;
    }

    @Override
    public boolean accept(@Nullable String dimVal) {
        if (dimVal == null || values == null) {
            return false;
        }
        if (caseSensitive) {
            return containsAny(target, dimVal);
        }
        for (String search : target) {
            if (!org.apache.commons.lang.StringUtils.containsIgnoreCase(dimVal, search)) {
                return false;
            }
        }
        return true;
    }

    private boolean containsAny(String[] target, String input) {
        for (String value : target) {
            if (!input.contains(value)) {
                return false;
            }
        }
        return true;
    }

    @Override
    public byte[] getCacheKey() {
        if (values == null) {
            return ByteBuffer.allocate(2).put(CACHE_TYPE_ID).put(caseSensitive ? (byte) 1 : 0).array();
        }

        final byte[][] valuesBytes = new byte[values.size()][];
        int valuesBytesSize = 0;
        int index = 0;
        for (String value : values) {
            valuesBytes[index] = StringUtils.toUtf8(value);
            valuesBytesSize += valuesBytes[index].length;
            ++index;
        }

        final ByteBuffer queryCacheKey = ByteBuffer.allocate(2 + valuesBytesSize).put(CACHE_TYPE_ID)
                .put(caseSensitive ? (byte) 1 : 0);

        for (byte[] bytes : valuesBytes) {
            queryCacheKey.put(bytes);
        }

        return queryCacheKey.array();
    }

    @Override
    public String toString() {
        return "FragmentSearchQuerySpec{" + "values=" + values + ", caseSensitive=" + caseSensitive + "}";
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        FragmentSearchQuerySpec that = (FragmentSearchQuerySpec) o;

        if (caseSensitive ^ that.caseSensitive) {
            return false;
        }

        if (values == null && that.values == null) {
            return true;
        }

        return values != null && Arrays.equals(target, that.target);
    }

    @Override
    public int hashCode() {
        return Arrays.hashCode(target) + (caseSensitive ? (byte) 1 : 0);
    }
}