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authorJim Hahn <jrh3@att.com>2019-04-13 09:05:13 -0400
committerJim Hahn <jrh3@att.com>2019-04-14 16:43:51 -0400
commitc8d0a3d8b7df3b09ce3405f1192754fdef7026d3 (patch)
tree27651921942e65b243f0d4110592b759d7afd2d8
parentc38fcf1a16f0d6bfdf2d80efa64a94ae68d80f03 (diff)
Add prefix matching for policy version
Re-introduced regular expressions to match policy version so that the policy version found in the metadata, which is just the major number, can be matched with a policy's version, which is of the form, major.minor.patch. Simplified equals() test, as we already know "text!=null". Added filterPrefixPred() and modified policy filter to use it when matching versions, as it is simpler to use when matching a version prefix. Also added tests to PfObjectFilterTest to test each of the XxxPred() methods. Change-Id: I0734873f701a539e883fe25b8eecfdde60cc8b6d Issue-ID: POLICY-1542 Signed-off-by: Jim Hahn <jrh3@att.com>
-rw-r--r--models-base/src/main/java/org/onap/policy/models/base/PfObjectFilter.java71
-rw-r--r--models-base/src/test/java/org/onap/policy/models/base/PfObjectFilterTest.java51
-rw-r--r--models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilter.java22
-rw-r--r--models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilterTest.java17
4 files changed, 147 insertions, 14 deletions
diff --git a/models-base/src/main/java/org/onap/policy/models/base/PfObjectFilter.java b/models-base/src/main/java/org/onap/policy/models/base/PfObjectFilter.java
index 35319b4fd..f4e457192 100644
--- a/models-base/src/main/java/org/onap/policy/models/base/PfObjectFilter.java
+++ b/models-base/src/main/java/org/onap/policy/models/base/PfObjectFilter.java
@@ -24,6 +24,9 @@ package org.onap.policy.models.base;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
/**
* Interface for filtering a list of concepts.
@@ -41,14 +44,74 @@ public interface PfObjectFilter<T extends Comparable<T>> {
public List<T> filter(final List<T> originalList);
/**
- * Check if a value matches a regular expression.
+ * Check if a value exactly equals some text.
*
* @param value the incoming value to check
- * @param pattern the pattern to check against
+ * @param text the desired text to check against
* @return match or not
*/
- public default boolean filterString(final String value, final String pattern) {
- return value == null || pattern == null || value.equals(pattern);
+ public default boolean filterString(final String value, final String text) {
+ return value == null || text == null || value.equals(text);
+ }
+
+ /**
+ * Gets a predicate used to filter an item in a list by exactly matching an extracted value
+ * with some text.
+ *
+ * @param text the desired text to check against, or {@code null} if to accept everything
+ * @param extractor function to extract the value, to be matched, from a list item
+ * @return a predicate to match a value from a list item
+ */
+ public default Predicate<T> filterStringPred(final String text, Function<T, String> extractor) {
+ // if null text, then everything matches
+ if (text == null) {
+ return item -> true;
+ }
+
+ return item -> text.equals(extractor.apply(item));
+ }
+
+ /**
+ * Gets a predicate used to filter an item in a list by comparing the start of an
+ * extracted value with a prefix.
+ *
+ * @param prefix the desired prefix to check against, or {@code null} if to accept
+ * everything
+ * @param extractor function to extract the value, to be matched, from a list item
+ * @return a predicate to match a prefix with a value from a list item
+ */
+ public default Predicate<T> filterPrefixPred(final String prefix, Function<T, String> extractor) {
+ // if null prefix, then everything matches
+ if (prefix == null) {
+ return item -> true;
+ }
+
+ return item -> {
+ String value = extractor.apply(item);
+ return (value != null && value.startsWith(prefix));
+ };
+ }
+
+ /**
+ * Gets a predicate used to filter an item in a list by matching an extracted value
+ * with a regular expression.
+ *
+ * @param pattern regular expression to match, or {@code null} if to accept everything
+ * @param extractor function to extract the value, to be matched, from a list item
+ * @return a predicate to match a value from a list item using a regular expression
+ */
+ public default Predicate<T> filterRegexpPred(final String pattern, Function<T, String> extractor) {
+ // if null pattern, then everything matches
+ if (pattern == null) {
+ return item -> true;
+ }
+
+ Pattern pat = Pattern.compile(pattern);
+
+ return item -> {
+ String value = extractor.apply(item);
+ return (value != null && pat.matcher(value).matches());
+ };
}
/**
diff --git a/models-base/src/test/java/org/onap/policy/models/base/PfObjectFilterTest.java b/models-base/src/test/java/org/onap/policy/models/base/PfObjectFilterTest.java
index 686342111..291a7d402 100644
--- a/models-base/src/test/java/org/onap/policy/models/base/PfObjectFilterTest.java
+++ b/models-base/src/test/java/org/onap/policy/models/base/PfObjectFilterTest.java
@@ -1,6 +1,7 @@
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -26,7 +27,9 @@ import static org.junit.Assert.assertTrue;
import java.util.ArrayList;
import java.util.List;
-
+import java.util.function.BiFunction;
+import java.util.function.Function;
+import java.util.function.Predicate;
import org.junit.Test;
import org.onap.policy.models.base.testconcepts.DummyPfObject;
@@ -100,5 +103,51 @@ public class PfObjectFilterTest {
latestVersionList.remove(1);
List<DummyPfObject> newestVersionList = dof.latestVersionFilter(latestVersionList);
assertEquals(latestVersionList, newestVersionList);
+
+ MyFilter filter = new MyFilter();
+
+ assertEquals(true, filter.filterString(null, "Hello"));
+
+ DummyPfObject doNullVersion = new DummyPfObject();
+ do5.setName("bbbbb");
+
+ assertEquals(false, filter(filter::filterStringPred, DummyPfObject::getVersion, doNullVersion, "1.0.0"));
+ assertEquals(false, filter(filter::filterStringPred, DummyPfObject::getVersion, do0, "1"));
+ assertEquals(false, filter(filter::filterStringPred, DummyPfObject::getVersion, do0, "2.0.0"));
+ assertEquals(true, filter(filter::filterStringPred, DummyPfObject::getVersion, doNullVersion, null));
+ assertEquals(true, filter(filter::filterStringPred, DummyPfObject::getVersion, do0, null));
+ assertEquals(true, filter(filter::filterStringPred, DummyPfObject::getVersion, do0, "1.0.0"));
+
+ assertEquals(false, filter(filter::filterPrefixPred, DummyPfObject::getVersion, doNullVersion, "1."));
+ assertEquals(false, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "1.1"));
+ assertEquals(false, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "1.1"));
+ assertEquals(false, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "2"));
+ assertEquals(true, filter(filter::filterPrefixPred, DummyPfObject::getVersion, doNullVersion, null));
+ assertEquals(true, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, null));
+ assertEquals(true, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "1."));
+ assertEquals(true, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "1.0."));
+ assertEquals(true, filter(filter::filterPrefixPred, DummyPfObject::getVersion, do0, "1.0.0"));
+
+ assertEquals(false, filter(filter::filterRegexpPred, DummyPfObject::getVersion, doNullVersion, "1[.].*"));
+ assertEquals(false, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, "2[.].*"));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, doNullVersion, null));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, null));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, "1[.].*"));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, "1[.]0[.].*"));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, "1[.]0[.]0"));
+ assertEquals(true, filter(filter::filterRegexpPred, DummyPfObject::getVersion, do0, "1...."));
+ }
+
+ private boolean filter(BiFunction<String, Function<DummyPfObject, String>, Predicate<DummyPfObject>> predMaker,
+ Function<DummyPfObject, String> extractor, DummyPfObject dpo, String text) {
+ Predicate<DummyPfObject> pred = predMaker.apply(text, extractor);
+ return pred.test(dpo);
+ }
+
+ private static class MyFilter implements PfObjectFilter<DummyPfObject> {
+ @Override
+ public List<DummyPfObject> filter(List<DummyPfObject> originalList) {
+ return null;
+ }
}
}
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilter.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilter.java
index bb0026e9a..012f7de34 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilter.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilter.java
@@ -1,6 +1,7 @@
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -39,16 +40,19 @@ import org.onap.policy.models.base.PfObjectFilter;
public class ToscaPolicyFilter implements PfObjectFilter<ToscaPolicy> {
public static final String LATEST_VERSION = "LATEST";
- // Regular expression
+ // Exact expression
private String name;
- // Regular Expression, set to LATEST_VERRSION to get the latest version
+ // Exact match, set to LATEST_VERSION to get the latest version
private String version;
- // Regular expression
+ // version prefix
+ private String versionPrefix;
+
+ // Exact expression
private String type;
- // Regular Expression, set to LATEST_VERRSION to get the latest version
+ // Exact Expression, set to LATEST_VERSION to get the latest version
private String typeVersion;
@Override
@@ -56,11 +60,11 @@ public class ToscaPolicyFilter implements PfObjectFilter<ToscaPolicy> {
// @formatter:off
List<ToscaPolicy> returnList = originalList.stream()
- .filter(p -> filterString(p.getName(), name))
- .filter(p -> LATEST_VERSION.equals(version)
- || filterString(p.getVersion(), version))
- .filter(p -> filterString(p.getType(), type))
- .filter(p -> filterString(p.getTypeVersion(), typeVersion))
+ .filter(filterStringPred(name, ToscaPolicy::getName))
+ .filter(filterStringPred((LATEST_VERSION.equals(version) ? null : version), ToscaPolicy::getVersion))
+ .filter(filterPrefixPred(versionPrefix, ToscaPolicy::getVersion))
+ .filter(filterStringPred(type, ToscaPolicy::getType))
+ .filter(filterStringPred(typeVersion, ToscaPolicy::getTypeVersion))
.collect(Collectors.toList());
// @formatter:off
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilterTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilterTest.java
index 84a0df00b..f7c9c7ef0 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilterTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyFilterTest.java
@@ -1,6 +1,7 @@
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -187,6 +188,22 @@ public class ToscaPolicyFilterTest {
}
@Test
+ public void testFilterVersionPrefix() {
+ // null pattern
+ ToscaPolicyFilter filter = ToscaPolicyFilter.builder().versionPrefix(null).build();
+ List<ToscaPolicy> filteredList = filter.filter(policyList);
+ assertEquals(17, filteredList.size());
+
+ filter = ToscaPolicyFilter.builder().versionPrefix("1.").build();
+ filteredList = filter.filter(policyList);
+ assertEquals(17, filteredList.size());
+
+ filter = ToscaPolicyFilter.builder().versionPrefix("100.").build();
+ filteredList = filter.filter(policyList);
+ assertEquals(0, filteredList.size());
+ }
+
+ @Test
public void testFilterTypeVersion() {
ToscaPolicyFilter filter = ToscaPolicyFilter.builder().type("onap.policies.controlloop.Operational").build();
List<ToscaPolicy> filteredList = filter.filter(policyList);