*/
package org.opendaylight.yangtools.yang.parser.util;
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.collect.HashBasedTable;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Table;
-import java.net.URI;
import java.util.Arrays;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.HashSet;
import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import org.opendaylight.yangtools.util.TopologicalSort;
-import org.opendaylight.yangtools.util.TopologicalSort.Node;
-import org.opendaylight.yangtools.util.TopologicalSort.NodeImpl;
-import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
-import org.opendaylight.yangtools.yang.common.YangVersion;
import org.opendaylight.yangtools.yang.model.api.Module;
-import org.opendaylight.yangtools.yang.model.api.ModuleImport;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
/**
* Creates a module dependency graph from provided {@link Module}s and
* provides a {@link #sort(Module...)} method. It is topological sort and
* returns modules in order in which they should be processed (e.g. if A imports
* B, sort returns {B, A}).
+ *
+ * @deprecated Use {@link org.opendaylight.yangtools.yang.model.util.ModuleDependencySort} instead.
*/
+@Deprecated
public final class ModuleDependencySort {
-
- private static final Date DEFAULT_REVISION = SimpleDateFormatUtil.DEFAULT_DATE_REV;
- private static final Logger LOG = LoggerFactory.getLogger(ModuleDependencySort.class);
-
/**
* It is not desirable to instance this class
*/
* returned order.
*/
public static List<Module> sort(final Iterable<Module> modules) {
- final List<Node> sorted = sortInternal(modules);
- // Cast to Module from Node and return
- return Lists.transform(sorted, input -> input == null ? null : ((ModuleNodeImpl) input).getReference());
- }
-
- private static List<Node> sortInternal(final Iterable<Module> modules) {
- final Table<String, Date, ModuleNodeImpl> moduleGraph = createModuleGraph(modules);
- return TopologicalSort.sort(new HashSet<>(moduleGraph.values()));
- }
-
- @VisibleForTesting
- static Table<String, Date, ModuleNodeImpl> createModuleGraph(final Iterable<Module> builders) {
- final Table<String, Date, ModuleNodeImpl> moduleGraph = HashBasedTable.create();
-
- processModules(moduleGraph, builders);
- processDependencies(moduleGraph, builders);
-
- return moduleGraph;
- }
-
- /**
- * Extract module:revision from module builders
- */
- private static void processDependencies(final Table<String, Date, ModuleNodeImpl> moduleGraph,
- final Iterable<Module> mmbs) {
- final Map<URI, Module> allNS = new HashMap<>();
-
- // Create edges in graph
- for (final Module module : mmbs) {
- final Map<String, Date> imported = new HashMap<>();
- final String fromName = module.getName();
- final URI ns = module.getNamespace();
- Date fromRevision = module.getRevision();
-
- // check for existence of module with same namespace
- final Module prev = allNS.putIfAbsent(ns, module);
- if (prev != null) {
- final String name = prev.getName();
- if (!fromName.equals(name)) {
- LOG.warn("Error while sorting module [{}, {}]: module with same namespace ({}) already loaded:"
- + " [{}, {}]", fromName, fromRevision, ns, name, prev.getRevision());
- }
- }
-
- // no need to check if other Type of object, check is performed in
- // process modules
-
- if (fromRevision == null) {
- fromRevision = DEFAULT_REVISION;
- }
-
- for (final ModuleImport imprt : module.getImports()) {
- final String toName = imprt.getModuleName();
- final Date toRevision = imprt.getRevision() == null ? DEFAULT_REVISION : imprt.getRevision();
-
- final ModuleNodeImpl from = moduleGraph.get(fromName, fromRevision);
-
- final ModuleNodeImpl to = getModuleByNameAndRevision(moduleGraph, fromName, fromRevision, toName, toRevision);
-
- /*
- * If it is an yang 1 module, check imports: If module is imported twice with different
- * revisions then throw exception
- */
- if (YangVersion.VERSION_1.toString().equals(module.getYangVersion())) {
- final Date impRevision = imported.get(toName);
- if (impRevision != null && !impRevision.equals(toRevision)
- && !DEFAULT_REVISION.equals(impRevision) && !DEFAULT_REVISION.equals(toRevision)) {
- throw new YangValidationException(String.format(
- "Module:%s imported twice with different revisions:%s, %s", toName,
- formatRevDate(impRevision), formatRevDate(toRevision)));
- }
- }
-
- imported.put(toName, toRevision);
-
- from.addEdge(to);
- }
- }
- }
-
- /**
- * Get imported module by its name and revision from moduleGraph
- */
- private static ModuleNodeImpl getModuleByNameAndRevision(final Table<String, Date, ModuleNodeImpl> moduleGraph,
- final String fromName, final Date fromRevision, final String toName, final Date toRevision) {
-
- final ModuleNodeImpl exact = moduleGraph.get(toName, toRevision);
- if (exact != null) {
- return exact;
- }
-
- // If revision is not specified in import, but module exists with different revisions, take first one
- if (DEFAULT_REVISION.equals(toRevision)) {
- final Map<Date, ModuleNodeImpl> modulerevs = moduleGraph.row(toName);
-
- if (!modulerevs.isEmpty()) {
- final ModuleNodeImpl first = modulerevs.values().iterator().next();
- if (LOG.isTraceEnabled()) {
- LOG.trace("Import:{}:{} by module:{}:{} does not specify revision, using:{}:{}"
- + " for module dependency sort", toName, formatRevDate(toRevision), fromName,
- formatRevDate(fromRevision), first.getName(), formatRevDate(first.getRevision()));
- }
- return first;
- }
- }
-
- LOG.warn("Not existing module imported:{}:{} by:{}:{}", toName, formatRevDate(toRevision), fromName,
- formatRevDate(fromRevision));
- LOG.warn("Available models: {}", moduleGraph);
- throw new YangValidationException(String.format("Not existing module imported:%s:%s by:%s:%s", toName,
- formatRevDate(toRevision), fromName, formatRevDate(fromRevision)));
- }
-
- /**
- * Extract dependencies from module builders or modules to fill dependency
- * graph
- */
- private static void processModules(final Table<String, Date, ModuleNodeImpl> moduleGraph,
- final Iterable<Module> modules) {
-
- // Process nodes
- for (final Module momb : modules) {
-
- final String name = momb.getName();
- Date rev = momb.getRevision();
- if (rev == null) {
- rev = DEFAULT_REVISION;
- }
-
- final Map<Date, ModuleNodeImpl> revs = moduleGraph.row(name);
- if (revs.containsKey(rev)) {
- throw new YangValidationException(String.format("Module:%s with revision:%s declared twice", name,
- formatRevDate(rev)));
- }
-
- revs.put(rev, new ModuleNodeImpl(name, rev, momb));
+ try {
+ return org.opendaylight.yangtools.yang.model.util.ModuleDependencySort.sort(modules);
+ } catch (IllegalArgumentException ex) {
+ throw new YangValidationException(ex.getMessage(), ex);
}
}
-
- private static String formatRevDate(final Date rev) {
- return rev.equals(DEFAULT_REVISION) ? "default" : SimpleDateFormatUtil.getRevisionFormat().format(rev);
- }
-
- @VisibleForTesting
- static class ModuleNodeImpl extends NodeImpl {
- private final String name;
- private final Date revision;
- private final Module originalObject;
-
- public ModuleNodeImpl(final String name, final Date revision, final Module module) {
- this.name = name;
- this.revision = revision;
- this.originalObject = module;
- }
-
- public String getName() {
- return name;
- }
-
- public Date getRevision() {
- return revision;
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + Objects.hashCode(name);
- result = prime * result + Objects.hashCode(revision);
- return result;
- }
-
- @Override
- public boolean equals(final Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (getClass() != obj.getClass()) {
- return false;
- }
- final ModuleNodeImpl other = (ModuleNodeImpl) obj;
- if (name == null) {
- if (other.name != null) {
- return false;
- }
- } else if (!name.equals(other.name)) {
- return false;
- }
- if (revision == null) {
- if (other.revision != null) {
- return false;
- }
- } else if (!revision.equals(other.revision)) {
- return false;
- }
- return true;
- }
-
- @Override
- public String toString() {
- return "Module [name=" + name + ", revision=" + formatRevDate(revision) + "]";
- }
-
- public Module getReference() {
- return originalObject;
- }
-
- }
-
}
Code Review / yangtools.git / blobdiff