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// Copyright 2018 The Bazel Authors. 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.
// 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 com.google.devtools.build.importdeps;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ComparisonChain;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.importdeps.AbstractClassEntryState.IncompleteState;
import com.google.devtools.build.importdeps.ClassInfo.MemberInfo;
import java.nio.file.Path;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
/** The collector that saves all the missing classes. */
public class ResultCollector {
private final HashSet<String> missingClasss = new HashSet<>();
private final HashMap<String, IncompleteState> incompleteClasses = new HashMap<>();
private final HashSet<MissingMember> missingMembers = new HashSet<>();
private final HashSet<Path> indirectDeps = new HashSet<>();
public ResultCollector() {}
public void addMissingOrIncompleteClass(String internalName, AbstractClassEntryState state) {
checkArgument(
internalName.length() > 0 && Character.isJavaIdentifierStart(internalName.charAt(0)),
"The internal name is invalid. %s",
internalName);
if (state.isIncompleteState()) {
IncompleteState oldValue = incompleteClasses.put(internalName, state.asIncompleteState());
checkState(
oldValue == null || oldValue == state,
"The old value and the new value are not the same object. old=%s, new=%s",
oldValue,
state);
// Add the real missing.
state.asIncompleteState().missingAncestors().forEach(missingClasss::add);
} else if (state.isMissingState()) {
missingClasss.add(internalName);
} else {
throw new UnsupportedOperationException("Unsupported state " + state);
}
}
/** Returns {@literal true} if there is NO dependency issue, {@literal false} otherwise. */
public boolean isEmpty() {
return missingClasss.isEmpty()
&& incompleteClasses.isEmpty()
&& missingMembers.isEmpty()
&& indirectDeps.isEmpty();
}
public void addMissingMember(ClassInfo owner, MemberInfo member) {
missingMembers.add(MissingMember.create(owner, member));
}
public void addIndirectDep(Path indirectDep) {
indirectDeps.add(indirectDep);
}
public ImmutableList<String> getSortedMissingClassInternalNames() {
return ImmutableList.sortedCopyOf(missingClasss);
}
public ImmutableList<IncompleteState> getSortedIncompleteClasses() {
return ImmutableList.sortedCopyOf(
Comparator.comparing(a -> a.classInfo().get().internalName()), incompleteClasses.values());
}
public ImmutableList<MissingMember> getSortedMissingMembers() {
return ImmutableList.sortedCopyOf(missingMembers);
}
public ImmutableList<Path> getSortedIndirectDeps() {
return ImmutableList.sortedCopyOf(indirectDeps);
}
/**
* A missing member on the classpath. This class does not contain the member name and description,
* but also the owner of the member.
*/
@AutoValue
public abstract static class MissingMember implements Comparable<MissingMember> {
public static MissingMember create(ClassInfo owner, String memberName, String descriptor) {
return create(owner, MemberInfo.create(memberName, descriptor));
}
public static MissingMember create(ClassInfo owner, MemberInfo member) {
return new AutoValue_ResultCollector_MissingMember(owner, member);
}
public abstract ClassInfo owner();
public abstract MemberInfo member();
public final String memberName() {
return member().memberName();
}
public final String descriptor() {
return member().descriptor();
}
@Override
public int compareTo(MissingMember other) {
return ComparisonChain.start()
.compare(this.owner(), other.owner())
.compare(this.memberName(), other.memberName())
.compare(this.descriptor(), other.descriptor())
.result();
}
}
}
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