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/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.data;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* In-memory data store for execution data. The data can be added through its
* {@link IExecutionDataVisitor} interface. If execution data is provided
* multiple times for the same class the data is merged, i.e. a probe is marked
* as executed if it is reported as executed at least once. This allows to merge
* coverage date from multiple runs. A instance of this class is not thread
* safe.
*/
public final class ExecutionDataStore implements IExecutionDataVisitor {
// BEGIN android-change
private final Map<Long, IExecutionData> entries = new HashMap<Long, IExecutionData>();
// END android-change
private final Set<String> names = new HashSet<String>();
/**
* Adds the given {@link ExecutionData} object into the store. If there is
* already execution data with this same class id, this structure is merged
* with the given one.
*
* @param data
* execution data to add or merge
* @throws IllegalStateException
* if the given {@link ExecutionData} object is not compatible
* to a corresponding one, that is already contained
* @see ExecutionData#assertCompatibility(long, String, int)
*/
// BEGIN android-change
public void put(final IExecutionData data) throws IllegalStateException {
final Long id = Long.valueOf(data.getId());
final IExecutionData entry = entries.get(id);
// END android-change
if (entry == null) {
entries.put(id, data);
names.add(data.getName());
} else {
entry.merge(data);
}
}
/**
* Subtracts the probes in the given {@link ExecutionData} object from the
* store. I.e. for all set probes in the given data object the corresponding
* probes in this store will be unset. If there is no execution data with id
* of the given data object this operation will have no effect.
*
* @param data
* execution data to subtract
* @throws IllegalStateException
* if the given {@link ExecutionData} object is not compatible
* to a corresponding one, that is already contained
* @see ExecutionData#assertCompatibility(long, String, int)
*/
// BEGIN android-change
public void subtract(final IExecutionData data) throws IllegalStateException {
final Long id = Long.valueOf(data.getId());
final IExecutionData entry = entries.get(id);
// END android-change
if (entry != null) {
entry.merge(data, false);
}
}
/**
* Subtracts all probes in the given execution data store from this store.
*
* @param store
* execution data store to subtract
* @see #subtract(ExecutionData)
*/
public void subtract(final ExecutionDataStore store) {
// BEGIN android-change
for (final IExecutionData data : store.getContents()) {
// END android-change
subtract(data);
}
}
/**
* Returns the {@link ExecutionData} entry with the given id if it exists in
* this store.
*
* @param id
* class id
* @return execution data or <code>null</code>
*/
// BEGIN android-change
public IExecutionData get(final long id) {
// END android-change
return entries.get(Long.valueOf(id));
}
/**
* Checks whether execution data for classes with the given name are
* contained in the store.
*
* @param name
* VM name
* @return <code>true</code> if at least one class with the name is
* contained.
*/
public boolean contains(final String name) {
return names.contains(name);
}
/**
* Returns the coverage data for the class with the given identifier. If
* there is no data available under the given id a new entry is created.
*
* @param id
* class identifier
* @param name
* VM name of the class
* @param probecount
* probe data length
* @return execution data
*/
// BEGIN android-change
public IExecutionData get(final Long id, final String name,
final int probecount) {
IExecutionData entry = entries.get(id);
// END android-change
if (entry == null) {
entry = new ExecutionData(id.longValue(), name, probecount);
entries.put(id, entry);
names.add(name);
} else {
entry.assertCompatibility(id.longValue(), name, probecount);
}
return entry;
}
/**
* Resets all execution data probes, i.e. marks them as not executed. The
* execution data objects itself are not removed.
*/
public void reset() {
// BEGIN android-change
for (final IExecutionData executionData : this.entries.values()) {
// END android-change
executionData.reset();
}
}
/**
* Returns a collection that represents current contents of the store.
*
* @return current contents
*/
// BEGIN android-change
public Collection<IExecutionData> getContents() {
return new ArrayList<IExecutionData>(entries.values());
}
// END android-change
/**
* Writes the content of the store to the given visitor interface.
*
* @param visitor
* interface to write content to
*/
public void accept(final IExecutionDataVisitor visitor) {
// BEGIN android-change
for (final IExecutionData data : getContents()) {
// END android-change
visitor.visitClassExecution(data);
}
}
// === IExecutionDataVisitor ===
// BEGIN android-change
public void visitClassExecution(final IExecutionData data) {
// END android-change
put(data);
}
}
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