diff --git a/core/pom.xml b/core/pom.xml index e621343a..68a1643e 100644 --- a/core/pom.xml +++ b/core/pom.xml @@ -114,6 +114,7 @@ + **/tests/draft2020-12/maxItems.json diff --git a/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordType.java b/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordType.java new file mode 100644 index 00000000..c8e482b3 --- /dev/null +++ b/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordType.java @@ -0,0 +1,65 @@ +/* + * The MIT License + * + * Copyright 2023 sebastian. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package io.github.sebastiantoepfer.jsonschema.core.vocab.validation; + +import io.github.sebastiantoepfer.jsonschema.InstanceType; +import io.github.sebastiantoepfer.jsonschema.JsonSchema; +import io.github.sebastiantoepfer.jsonschema.keyword.Assertion; +import io.github.sebastiantoepfer.jsonschema.keyword.Keyword; +import io.github.sebastiantoepfer.jsonschema.keyword.KeywordType; +import jakarta.json.JsonNumber; +import jakarta.json.JsonValue; +import java.util.Objects; + +final class MaxItemsKeywordType implements KeywordType { + + @Override + public String name() { + return "maxItems"; + } + + @Override + public Keyword createKeyword(final JsonSchema schema, final JsonValue value) { + return new MaxItemsKeyword((JsonNumber) value); + } + + private class MaxItemsKeyword implements Assertion { + + private final int maxItems; + + public MaxItemsKeyword(final JsonNumber maxItems) { + this.maxItems = maxItems.intValue(); + } + + @Override + public boolean isValidFor(final JsonValue instance) { + return !InstanceType.ARRAY.isInstance(instance) || instance.asJsonArray().size() <= maxItems; + } + + @Override + public boolean hasName(final String name) { + return Objects.equals(name(), name); + } + } +} diff --git a/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/ValidationVocabulary.java b/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/ValidationVocabulary.java index 26a3ba21..5379a4f5 100644 --- a/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/ValidationVocabulary.java +++ b/core/src/main/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/ValidationVocabulary.java @@ -45,7 +45,8 @@ public ValidationVocabulary() { new ExclusiveMinimumKeywordType(), new MaximumKeywordType(), new ExclusiveMaximumKeywordType(), - new MultipleOfKeywordType() + new MultipleOfKeywordType(), + new MaxItemsKeywordType() ); } diff --git a/core/src/test/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordTypeTest.java b/core/src/test/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordTypeTest.java new file mode 100644 index 00000000..82301959 --- /dev/null +++ b/core/src/test/java/io/github/sebastiantoepfer/jsonschema/core/vocab/validation/MaxItemsKeywordTypeTest.java @@ -0,0 +1,89 @@ +/* + * The MIT License + * + * Copyright 2023 sebastian. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package io.github.sebastiantoepfer.jsonschema.core.vocab.validation; + +import static org.hamcrest.MatcherAssert.assertThat; +import static org.hamcrest.Matchers.is; + +import io.github.sebastiantoepfer.jsonschema.core.DefaultJsonSchemaFactory; +import io.github.sebastiantoepfer.jsonschema.keyword.Keyword; +import jakarta.json.Json; +import jakarta.json.JsonValue; +import org.junit.jupiter.api.Test; + +class MaxItemsKeywordTypeTest { + + @Test + void should_know_his_name() { + final Keyword keyword = new MaxItemsKeywordType() + .createKeyword(new DefaultJsonSchemaFactory().create(JsonValue.TRUE), Json.createValue(1)); + + assertThat(keyword.hasName("maxItems"), is(true)); + assertThat(keyword.hasName("test"), is(false)); + } + + @Test + void should_be_valid_for_non_arrays() { + assertThat( + new MaxItemsKeywordType() + .createKeyword(new DefaultJsonSchemaFactory().create(JsonValue.TRUE), Json.createValue(2)) + .asAssertion() + .isValidFor(JsonValue.EMPTY_JSON_OBJECT), + is(true) + ); + } + + @Test + void should_be_valid_for_array_with_same_size() { + assertThat( + new MaxItemsKeywordType() + .createKeyword(new DefaultJsonSchemaFactory().create(JsonValue.TRUE), Json.createValue(2)) + .asAssertion() + .isValidFor(Json.createArrayBuilder().add(1).add(2).build()), + is(true) + ); + } + + @Test + void should_be_valid_for_array_with_smaller_size() { + assertThat( + new MaxItemsKeywordType() + .createKeyword(new DefaultJsonSchemaFactory().create(JsonValue.TRUE), Json.createValue(2)) + .asAssertion() + .isValidFor(Json.createArrayBuilder().add(1).build()), + is(true) + ); + } + + @Test + void should_be_invalid_for_array_with_greather_size() { + assertThat( + new MaxItemsKeywordType() + .createKeyword(new DefaultJsonSchemaFactory().create(JsonValue.TRUE), Json.createValue(2)) + .asAssertion() + .isValidFor(Json.createArrayBuilder().add(1).add(2).add(3).build()), + is(false) + ); + } +}