<commit_before>/*
 * Copyright 2017 the original author or authors.
 *
 * Licensed 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 org.gradle.api.internal.changedetection.state;

import org.gradle.cache.PersistentIndexedCache;
import org.gradle.internal.fingerprint.hashing.FileSystemLocationSnapshotHasher;
import org.gradle.internal.fingerprint.hashing.RegularFileSnapshotContextHasher;
import org.gradle.internal.fingerprint.hashing.RegularFileSnapshotContext;
import org.gradle.internal.hash.HashCode;
import org.gradle.internal.hash.Hasher;
import org.gradle.internal.hash.Hashing;
import org.gradle.internal.snapshot.FileSystemLocationSnapshot;

import javax.annotation.Nullable;
import java.io.IOException;

public class DefaultResourceSnapshotterCacheService implements ResourceSnapshotterCacheService {
    private static final HashCode NO_HASH = Hashing.signature(CachingResourceHasher.class.getName() + " : no hash");
    private final PersistentIndexedCache<HashCode, HashCode> persistentCache;

    public DefaultResourceSnapshotterCacheService(PersistentIndexedCache<HashCode, HashCode> persistentCache) {
        this.persistentCache = persistentCache;
    }

    @Nullable
    @Override
    public HashCode hashFile(FileSystemLocationSnapshot snapshot, FileSystemLocationSnapshotHasher hasher, HashCode configurationHash) throws IOException {
        return hashFile(snapshot, () -> hasher.hash(snapshot), configurationHash);
    }

    @Nullable
    @Override
    public HashCode hashFile(RegularFileSnapshotContext fileSnapshotContext, RegularFileSnapshotContextHasher hasher, HashCode configurationHash) throws IOException {
        return hashFile(fileSnapshotContext.getSnapshot(), () -> hasher.hash(fileSnapshotContext), configurationHash);
    }

    @Nullable
    private HashCode hashFile(FileSystemLocationSnapshot snapshot, HashCodeSupplier hashCodeSupplier, HashCode configurationHash) throws IOException {
        HashCode resourceHashCacheKey = resourceHashCacheKey(snapshot.getHash(), configurationHash);

        HashCode resourceHash = persistentCache.getIfPresent(resourceHashCacheKey);
        if (resourceHash != null) {
            if (resourceHash.equals(NO_HASH)) {
                return null;
            }
            return resourceHash;
        }

        resourceHash = hashCodeSupplier.get();

        if (resourceHash != null) {
            persistentCache.put(resourceHashCacheKey, resourceHash);
        } else {
            persistentCache.put(resourceHashCacheKey, NO_HASH);
        }
        return resourceHash;
    }

    private static HashCode resourceHashCacheKey(HashCode contentHash, HashCode configurationHash) {
        Hasher hasher = Hashing.newHasher();
        hasher.putHash(configurationHash);
        hasher.putHash(contentHash);
        return hasher.hash();
    }

    @FunctionalInterface
    private interface HashCodeSupplier {
        @Nullable
        HashCode get() throws IOException;
    }
}<commit_msg>Use IOSupplier instead of a custom class<commit_after>/*
 * Copyright 2017 the original author or authors.
 *
 * Licensed 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 org.gradle.api.internal.changedetection.state;

import org.gradle.cache.PersistentIndexedCache;
import org.gradle.internal.fingerprint.hashing.FileSystemLocationSnapshotHasher;
import org.gradle.internal.fingerprint.hashing.RegularFileSnapshotContextHasher;
import org.gradle.internal.fingerprint.hashing.RegularFileSnapshotContext;
import org.gradle.internal.hash.HashCode;
import org.gradle.internal.hash.Hasher;
import org.gradle.internal.hash.Hashing;
import org.gradle.internal.io.IoSupplier;
import org.gradle.internal.snapshot.FileSystemLocationSnapshot;

import javax.annotation.Nullable;
import java.io.IOException;

public class DefaultResourceSnapshotterCacheService implements ResourceSnapshotterCacheService {
    private static final HashCode NO_HASH = Hashing.signature(CachingResourceHasher.class.getName() + " : no hash");
    private final PersistentIndexedCache<HashCode, HashCode> persistentCache;

    public DefaultResourceSnapshotterCacheService(PersistentIndexedCache<HashCode, HashCode> persistentCache) {
        this.persistentCache = persistentCache;
    }

    @Nullable
    @Override
    public HashCode hashFile(FileSystemLocationSnapshot snapshot, FileSystemLocationSnapshotHasher hasher, HashCode configurationHash) throws IOException {
        return hashFile(snapshot, () -> hasher.hash(snapshot), configurationHash);
    }

    @Nullable
    @Override
    public HashCode hashFile(RegularFileSnapshotContext fileSnapshotContext, RegularFileSnapshotContextHasher hasher, HashCode configurationHash) throws IOException {
        return hashFile(fileSnapshotContext.getSnapshot(), () -> hasher.hash(fileSnapshotContext), configurationHash);
    }

    @Nullable
    private HashCode hashFile(FileSystemLocationSnapshot snapshot, IoSupplier<HashCode> hashCodeSupplier, HashCode configurationHash) throws IOException {
        HashCode resourceHashCacheKey = resourceHashCacheKey(snapshot.getHash(), configurationHash);

        HashCode resourceHash = persistentCache.getIfPresent(resourceHashCacheKey);
        if (resourceHash != null) {
            if (resourceHash.equals(NO_HASH)) {
                return null;
            }
            return resourceHash;
        }

        resourceHash = hashCodeSupplier.get();

        if (resourceHash != null) {
            persistentCache.put(resourceHashCacheKey, resourceHash);
        } else {
            persistentCache.put(resourceHashCacheKey, NO_HASH);
        }
        return resourceHash;
    }

    private static HashCode resourceHashCacheKey(HashCode contentHash, HashCode configurationHash) {
        Hasher hasher = Hashing.newHasher();
        hasher.putHash(configurationHash);
        hasher.putHash(contentHash);
        return hasher.hash();
    }
}
{'fraction_non_alphanumeric': 0.0748663101604278, 'fraction_numerical': 0.002312472900708195, 'mean_word_length': 4.1526433358153385, 'pattern_counts': {'":': 0, '<': 8, '<?xml version=': 0, '>': 12, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5666040', 'n_tokens_mistral': 1752, 'n_tokens_neox': 1704, 'n_words': 451}