Added inspection to show warnings from explain queries

database/api/src/main/java/com/neueda/jetbrains/plugin/graphdb/database/api/query/GraphQueryNotification.java

@@ -0,0 +1,10 @@
+package com.neueda.jetbrains.plugin.graphdb.database.api.query;
+
+public interface GraphQueryNotification {
+
+    String getTitle();
+
+    String getDescription();
+
+    Integer getPositionOffset();
+}

database/api/src/main/java/com/neueda/jetbrains/plugin/graphdb/database/api/query/GraphQueryResult.java

@@ -18,4 +18,6 @@ public interface GraphQueryResult {
     List<GraphNode> getNodes();
 
     List<GraphRelationship> getRelationships();
+
+    List<GraphQueryNotification> getNotifications();
 }

database/neo4j/src/main/java/com/neueda/jetbrains/plugin/graphdb/database/neo4j/bolt/Neo4jBoltBuffer.java

@@ -2,16 +2,22 @@
 
 import com.neueda.jetbrains.plugin.graphdb.database.api.data.GraphNode;
 import com.neueda.jetbrains.plugin.graphdb.database.api.data.GraphRelationship;
+import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryNotification;
 import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResultColumn;
 import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResultRow;
+import com.neueda.jetbrains.plugin.graphdb.database.neo4j.bolt.data.Neo4jBoltQueryNotification;
 import com.neueda.jetbrains.plugin.graphdb.database.neo4j.bolt.data.Neo4jBoltQueryResultColumn;
 import com.neueda.jetbrains.plugin.graphdb.database.neo4j.bolt.data.Neo4jBoltQueryResultRow;
+import org.neo4j.driver.v1.summary.InputPosition;
 import org.neo4j.driver.v1.summary.ResultSummary;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
+import java.util.Optional;
+
+import static java.util.stream.Collectors.toList;
 
 public class Neo4jBoltBuffer {
 
@@ -20,6 +26,7 @@ public class Neo4jBoltBuffer {
     private ResultSummary resultSummary;
     private List<GraphNode> nodes;
     private List<GraphRelationship> relationships;
+    private List<GraphQueryNotification> notifications;
 
     public Neo4jBoltBuffer() {
         this.rows = new ArrayList<>();
@@ -28,7 +35,7 @@ public Neo4jBoltBuffer() {
     public void addColumns(List<String> columns) {
         this.columns = columns.stream()
                 .map(Neo4jBoltQueryResultColumn::new)
-                .collect(Collectors.toList());
+                .collect(toList());
     }
 
     public void addResultSummary(ResultSummary resultSummary) {
@@ -55,7 +62,7 @@ public List<GraphNode> getNodes() {
         nodes = rows.stream()
                 .flatMap(row -> row.getNodes().stream())
                 .distinct()
-                .collect(Collectors.toList());
+                .collect(toList());
 
         return nodes;
     }
@@ -68,12 +75,32 @@ public List<GraphRelationship> getRelationships() {
         relationships = rows.stream()
                 .flatMap(row -> row.getRelationships().stream())
                 .distinct()
-                .collect(Collectors.toList());
+                .collect(toList());
 
         return relationships;
     }
 
     public ResultSummary getResultSummary() {
         return resultSummary;
     }
+
+    public List<GraphQueryNotification> getNotifications() {
+        if (resultSummary == null) {
+            return Collections.emptyList();
+        }
+
+        if (notifications != null) {
+            return notifications;
+        }
+
+        notifications = resultSummary.notifications().stream()
+                .map(notification -> new Neo4jBoltQueryNotification(notification.title(),
+                        notification.description(),
+                        Optional.ofNullable(notification.position())
+                                .map(InputPosition::offset)
+                                .orElse(null)))
+                .collect(toList());
+
+        return notifications;
+    }
 }

database/neo4j/src/main/java/com/neueda/jetbrains/plugin/graphdb/database/neo4j/bolt/data/Neo4jBoltQueryNotification.java

@@ -0,0 +1,31 @@
+package com.neueda.jetbrains.plugin.graphdb.database.neo4j.bolt.data;
+
+import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryNotification;
+
+public class Neo4jBoltQueryNotification implements GraphQueryNotification {
+
+    private String title;
+    private String description;
+    private Integer positionOffset;
+
+    public Neo4jBoltQueryNotification(String title, String description, Integer positionOffset) {
+        this.title = title;
+        this.description = description;
+        this.positionOffset = positionOffset;
+    }
+
+    @Override
+    public String getTitle() {
+        return title;
+    }
+
+    @Override
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public Integer getPositionOffset() {
+        return positionOffset;
+    }
+}

database/neo4j/src/main/java/com/neueda/jetbrains/plugin/graphdb/database/neo4j/bolt/query/Neo4jBoltQueryResult.java

@@ -2,6 +2,7 @@
 
 import com.neueda.jetbrains.plugin.graphdb.database.api.data.GraphNode;
 import com.neueda.jetbrains.plugin.graphdb.database.api.data.GraphRelationship;
+import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryNotification;
 import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResult;
 import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResultColumn;
 import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResultRow;
@@ -143,6 +144,11 @@ public List<GraphRelationship> getRelationships() {
         return buffer.getRelationships();
     }
 
+    @Override
+    public List<GraphQueryNotification> getNotifications() {
+        return buffer.getNotifications();
+    }
+
     private Optional<GraphNode> findNodeById(List<GraphNode> nodes, String id) {
         return nodes.stream().filter((node) -> node.getId().equals(id)).findFirst();
     }

graph-database-support-plugin/src/main/resources/META-INF/plugin.xml

@@ -150,6 +150,10 @@
         <projectService serviceInterface="com.neueda.jetbrains.plugin.graphdb.language.cypher.completion.metadata.CypherMetadataProviderService"
                         serviceImplementation="com.neueda.jetbrains.plugin.graphdb.language.cypher.completion.metadata.CypherMetadataProviderServiceImpl"/>
         <lang.documentationProvider language="Cypher" implementationClass="com.neueda.jetbrains.plugin.graphdb.language.cypher.documentation.CypherDocumentationProvider"/>
+
+        <localInspection language="Cypher" displayName="Cypher EXPLAIN warning inspection" groupPath="Cypher"
+                         groupName="General" enabledByDefault="true" level="WARNING"
+                         implementationClass="com.neueda.jetbrains.plugin.graphdb.jetbrains.inspection.CypherExplainWarningInspection"/>
     </extensions>
 
     <actions>

graph-database-support-plugin/src/main/resources/inspectionDescriptions/CypherExplainWarning.html

@@ -0,0 +1,6 @@
+<html>
+<body>
+<!-- tooltip end -->
+Executes EXPLAIN query against active data source.
+</body>
+</html>

testing/integration-neo4j/src/test/java/com/neueda/jetbrains/plugin/graphdb/test/integration/neo4j/tests/cypher/inspection/CypherExplainWarningInspectionTest.java

@@ -0,0 +1,60 @@
+package com.neueda.jetbrains.plugin.graphdb.test.integration.neo4j.tests.cypher.inspection;
+
+import com.intellij.psi.PsiFile;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.component.datasource.state.DataSourceApi;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.inspection.CypherExplainWarningInspection;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.util.NameUtil;
+import com.neueda.jetbrains.plugin.graphdb.test.integration.neo4j.util.base.BaseIntegrationTest;
+
+public class CypherExplainWarningInspectionTest extends BaseIntegrationTest {
+
+    private DataSourceApi dsApi;
+
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        this.dsApi = dataSource().neo4j31();
+        myFixture.enableInspections(CypherExplainWarningInspection.class);
+    }
+
+    public void testNonDataSourceFile_NoHighlight() {
+        PsiFile psiFile = myFixture.addFileToProject("a.cyp", "MATCH (a)-->(b) RETURN *");
+        myFixture.configureFromExistingVirtualFile(psiFile.getVirtualFile());
+        myFixture.checkHighlighting();
+    }
+
+    public void testDataSourceFile_NoHighlight() {
+        String fileName = NameUtil.createDataSourceFileName(dsApi);
+        PsiFile psiFile = myFixture.addFileToProject(fileName,
+                "MATCH (a)-->(b) RETURN *");
+        myFixture.configureFromExistingVirtualFile(psiFile.getVirtualFile());
+        myFixture.checkHighlighting();
+    }
+
+    public void testDataSourceFile_HighlightExplainWarning() {
+        String fileName = NameUtil.createDataSourceFileName(dsApi);
+        PsiFile psiFile = myFixture.addFileToProject(fileName,
+                        "MATCH (a)-[r:" +
+                                "<warning descr=\"The provided relationship type is not in the database.\">" +
+                                "ART</warning>]-(b) RETURN *;");
+        myFixture.configureFromExistingVirtualFile(psiFile.getVirtualFile());
+        myFixture.checkHighlighting();
+    }
+
+    public void testDataSourceFile_NoHighlightQueryError() {
+        String fileName = NameUtil.createDataSourceFileName(dsApi);
+        PsiFile psiFile = myFixture.addFileToProject(fileName,
+                        "MATCH (a)-->() RETURN b;");
+        myFixture.configureFromExistingVirtualFile(psiFile.getVirtualFile());
+        myFixture.checkHighlighting();
+    }
+
+    public void testDataSourceFile_NoHighlightParserError() {
+        String fileName = NameUtil.createDataSourceFileName(dsApi);
+        PsiFile psiFile = myFixture.addFileToProject(fileName,
+                        "MATCH a<error>-</error>->() RETURN *;");
+        myFixture.configureFromExistingVirtualFile(psiFile.getVirtualFile());
+        myFixture.checkHighlighting();
+    }
+
+}

ui/jetbrains/src/main/java/com/neueda/jetbrains/plugin/graphdb/jetbrains/inspection/CypherExplainWarningInspection.java

@@ -0,0 +1,94 @@
+package com.neueda.jetbrains.plugin.graphdb.jetbrains.inspection;
+
+import com.intellij.codeInspection.LocalInspectionTool;
+import com.intellij.codeInspection.LocalInspectionToolSession;
+import com.intellij.codeInspection.ProblemsHolder;
+import com.intellij.openapi.components.ServiceManager;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiElementVisitor;
+import com.neueda.jetbrains.plugin.graphdb.database.api.GraphDatabaseApi;
+import com.neueda.jetbrains.plugin.graphdb.database.api.query.GraphQueryResult;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.component.datasource.DataSourcesComponent;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.database.DatabaseManagerService;
+import com.neueda.jetbrains.plugin.graphdb.jetbrains.util.NameUtil;
+import com.neueda.jetbrains.plugin.graphdb.language.cypher.psi.CypherTypes;
+import com.neueda.jetbrains.plugin.graphdb.platform.GraphConstants;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.neo4j.driver.v1.exceptions.ClientException;
+
+import java.util.Objects;
+import java.util.Optional;
+
+public class CypherExplainWarningInspection extends LocalInspectionTool {
+
+    private DatabaseManagerService service;
+
+    public CypherExplainWarningInspection() {
+        this.service = ServiceManager.getService(DatabaseManagerService.class);
+    }
+
+    @NotNull
+    @Override
+    public PsiElementVisitor buildVisitor(@NotNull ProblemsHolder holder, boolean isOnTheFly,
+                                          @NotNull LocalInspectionToolSession session) {
+        return new PsiElementVisitor() {
+            @Override
+            public void visitElement(PsiElement element) {
+                checkStatement(element, holder);
+            }
+        };
+    }
+
+    @NotNull
+    @Override
+    public PsiElementVisitor buildVisitor(@NotNull ProblemsHolder holder, boolean isOnTheFly) {
+        return new PsiElementVisitor() {
+            @Override
+            public void visitElement(PsiElement element) {
+                checkStatement(element, holder);
+            }
+        };
+    }
+
+    private void checkStatement(@NotNull PsiElement statement, @NotNull ProblemsHolder problemsHolder) {
+        if (statement.getNode().getElementType() == CypherTypes.SINGLE_QUERY) {
+
+            String fileName = statement.getContainingFile().getName();
+            if (fileName.startsWith(GraphConstants.BOUND_DATA_SOURCE_PREFIX)) {
+                DataSourcesComponent component = statement.getProject().getComponent(DataSourcesComponent.class);
+
+                component.getDataSourceContainer()
+                        .findDataSource(NameUtil.extractDataSourceUUID(fileName))
+                        .map(service::getDatabaseFor)
+                        .map(api -> this.executeExplainQuery(api, statement.getText()))
+                        .filter(Objects::nonNull)
+                        .map(GraphQueryResult::getNotifications)
+                        .filter(list -> !list.isEmpty())
+                        .ifPresent(notifications -> notifications.forEach(notification -> {
+                            PsiElement elementAt = Optional.ofNullable(notification.getPositionOffset())
+                                    .filter(position -> position > 0)
+                                    .map(statement::findElementAt)
+                                    .orElse(statement);
+
+                            problemsHolder.registerProblem(elementAt, notification.getTitle());
+                        }));
+            }
+        }
+    }
+
+    @Nullable
+    @Override
+    public String loadDescription() {
+        return super.loadDescription();
+    }
+
+    private GraphQueryResult executeExplainQuery(GraphDatabaseApi api, String query) {
+        try {
+            return api.execute("EXPLAIN " + query);
+        } catch (ClientException ex) {
+            return null;
+        }
+    }
+
+}