Add postgresql agent sql query param show

apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/conf/Config.java

@@ -273,6 +273,22 @@ public static class MySQL {
             public static int SQL_PARAMETERS_MAX_LENGTH = 512;
         }
 
+        public static class POSTGRESQL {
+            /**
+             * If set to true, the parameters of the sql (typically {@link java.sql.PreparedStatement}) would be
+             * collected.
+             */
+            public static boolean TRACE_SQL_PARAMETERS = false;
+
+            /**
+             * For the sake of performance, SkyWalking won't save the entire parameters string into the tag, but only
+             * the first {@code SQL_PARAMETERS_MAX_LENGTH} characters.
+             *
+             * Set a negative number to save the complete parameter string to the tag.
+             */
+            public static int SQL_PARAMETERS_MAX_LENGTH = 512;
+        }
+
         public static class SolrJ {
             /**
              * If true, trace all the query parameters(include deleteByIds and deleteByQuery) in Solr query request,

apm-sniffer/apm-sdk-plugin/jdbc-commons/src/main/java/org/apache/skywalking/apm/plugin/jdbc/PSSetterDefinitionOfJDBCInstrumentation.java

@@ -45,7 +45,7 @@ public PSSetterDefinitionOfJDBCInstrumentation(boolean ignorable) {
     public ElementMatcher<MethodDescription> getMethodsMatcher() {
         ElementMatcher.Junction<MethodDescription> matcher = none();
 
-        if (Config.Plugin.MySQL.TRACE_SQL_PARAMETERS) {
+        if (Config.Plugin.MySQL.TRACE_SQL_PARAMETERS || Config.Plugin.POSTGRESQL.TRACE_SQL_PARAMETERS) {
             final Set<String> setters = ignorable ? PS_IGNORABLE_SETTERS : PS_SETTERS;
             for (String setter : setters) {
                 matcher = matcher.or(named(setter));

apm-sniffer/apm-sdk-plugin/jdbc-commons/src/main/java/org/apache/skywalking/apm/plugin/jdbc/define/StatementEnhanceInfos.java

@@ -19,9 +19,8 @@
 
 package org.apache.skywalking.apm.plugin.jdbc.define;
 
-import org.apache.skywalking.apm.plugin.jdbc.trace.ConnectionInfo;
-
 import java.util.Arrays;
+import org.apache.skywalking.apm.plugin.jdbc.trace.ConnectionInfo;
 
 /**
  * {@link StatementEnhanceInfos} contain the {@link ConnectionInfo} and
@@ -58,7 +57,7 @@ public void setParameter(int index, final Object parameter) {
         maxIndex = maxIndex > index ? maxIndex : index;
         index--; // start from 1
         if (parameters == null) {
-            final int initialSize = Math.max(20, maxIndex);
+            final int initialSize = Math.max(16, maxIndex);
             parameters = new Object[initialSize];
             Arrays.fill(parameters, null);
         }

apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/PreparedStatementExecuteMethodsInterceptor.java

@@ -20,7 +20,9 @@
 package org.apache.skywalking.apm.plugin.jdbc.postgresql;
 
 import java.lang.reflect.Method;
+import org.apache.skywalking.apm.agent.core.conf.Config;
 import org.apache.skywalking.apm.agent.core.context.ContextManager;
+import org.apache.skywalking.apm.agent.core.context.tag.StringTag;
 import org.apache.skywalking.apm.agent.core.context.tag.Tags;
 import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan;
 import org.apache.skywalking.apm.agent.core.context.trace.SpanLayer;
@@ -36,6 +38,9 @@
  * @author zhangxin
  */
 public class PreparedStatementExecuteMethodsInterceptor implements InstanceMethodsAroundInterceptor {
+
+    public static final StringTag SQL_PARAMETERS = new StringTag("db.sql.parameters");
+
     @Override
     public final void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments,
         Class<?>[] argumentsTypes,
@@ -48,6 +53,19 @@ public final void beforeMethod(EnhancedInstance objInst, Method method, Object[]
         Tags.DB_STATEMENT.set(span, cacheObject.getSql());
         span.setComponent(connectInfo.getComponent());
 
+        if (Config.Plugin.POSTGRESQL.TRACE_SQL_PARAMETERS) {
+            final Object[] parameters = cacheObject.getParameters();
+            if (parameters != null && parameters.length > 0) {
+                int maxIndex = cacheObject.getMaxIndex();
+                String parameterString = buildParameterString(parameters, maxIndex);
+                int sqlParametersMaxLength = Config.Plugin.MySQL.SQL_PARAMETERS_MAX_LENGTH;
+                if (sqlParametersMaxLength > 0 && parameterString.length() > sqlParametersMaxLength) {
+                    parameterString = parameterString.substring(0, sqlParametersMaxLength) + "..." + "]";
+                }
+                SQL_PARAMETERS.set(span, parameterString);
+            }
+        }
+
         SpanLayer.asDB(span);
     }
 
@@ -73,4 +91,19 @@ public final Object afterMethod(EnhancedInstance objInst, Method method, Object[
     private String buildOperationName(ConnectionInfo connectionInfo, String methodName, String statementName) {
         return connectionInfo.getDBType() + "/JDBI/" + statementName + "/" + methodName;
     }
+
+    private String buildParameterString(Object[] parameters, int maxIndex) {
+        String parameterString = "[";
+        boolean first = true;
+        for (int i = 0; i < maxIndex; i++) {
+            Object parameter = parameters[i];
+            if (!first) {
+                parameterString += ",";
+            }
+            parameterString += parameter;
+            first = false;
+        }
+        parameterString += "]";
+        return parameterString;
+    }
 }

apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/define/Constants.java

@@ -28,5 +28,4 @@ public class Constants {
     public static final String CREATE_STATEMENT_INTERCEPTOR_CLASS = "org.apache.skywalking.apm.plugin.jdbc.postgresql.CreateStatementInterceptor";
     public static final String CREATE_PREPARED_STATEMENT_INTERCEPTOR_CLASS = "org.apache.skywalking.apm.plugin.jdbc.postgresql.CreatePreparedStatementInterceptor";
     public static final String CREATE_CALLABLE_STATEMENT_INTERCEPTOR_CLASS = "org.apache.skywalking.apm.plugin.jdbc.postgresql.CreateCallableStatementInterceptor";
-
 }

apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/define/PgPreparedStatementSetterInstrumentation.java

@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.skywalking.apm.plugin.jdbc.postgresql.define;
+
+import org.apache.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint;
+import org.apache.skywalking.apm.plugin.jdbc.PSSetterDefinitionOfJDBCInstrumentation;
+
+/**
+ * @author aderm
+ */
+public class PgPreparedStatementSetterInstrumentation extends PgPreparedStatementInstrumentation {
+
+    @Override
+    public final InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
+        return new InstanceMethodsInterceptPoint[] {
+            new PSSetterDefinitionOfJDBCInstrumentation(false)
+        };
+    }
+
+}

apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/resources/skywalking-plugin.def

@@ -22,3 +22,4 @@ postgresql-8.x=org.apache.skywalking.apm.plugin.jdbc.postgresql.define.AbstractJ
 postgresql-8.x=org.apache.skywalking.apm.plugin.jdbc.postgresql.define.PgCallableStatementInstrumentation
 postgresql-8.x=org.apache.skywalking.apm.plugin.jdbc.postgresql.define.PgPreparedStatementInstrumentation
 postgresql-8.x=org.apache.skywalking.apm.plugin.jdbc.postgresql.define.PgStatementInstrumentation
+postgresql-8.x=org.apache.skywalking.apm.plugin.jdbc.postgresql.define.PgPreparedStatementSetterInstrumentation

docs/en/setup/service-agent/java-agent/README.md

@@ -102,6 +102,8 @@ property key | Description | Default |
 `plugin.toolit.use_qualified_name_as_operation_name`|If true, the fully qualified method name will be used as the operation name instead of the given operation name, default is false.|`false`|
 `plugin.mysql.trace_sql_parameters`|If set to true, the parameters of the sql (typically `java.sql.PreparedStatement`) would be collected.|`false`|
 `plugin.mysql.sql_parameters_max_length`|If set to positive number, the `db.sql.parameters` would be truncated to this length, otherwise it would be completely saved, which may cause performance problem.|`512`|
+`plugin.postgresql.trace_sql_parameters`|If set to true, the parameters of the sql (typically `java.sql.PreparedStatement`) would be collected.|`false`|
+`plugin.postgresql.sql_parameters_max_length`|If set to positive number, the `db.sql.parameters` would be truncated to this length, otherwise it would be completely saved, which may cause performance problem.|`512`|
 `plugin.solrj.trace_statement`|If true, trace all the query parameters(include deleteByIds and deleteByQuery) in Solr query request, default is false.|`false`|
 `plugin.solrj.trace_ops_params`|If true, trace all the operation parameters in Solr request, default is false.|`false`|
 `plugin.light4j.trace_handler_chain`|If true, trace all middleware/business handlers that are part of the Light4J handler chain for a request.|false|

test/plugin/scenarios/postgresql-above9.4.1207-scenario/bin/startup.sh

@@ -17,4 +17,4 @@
 
 home="$(cd "$(dirname $0)"; pwd)"
 
-java -jar ${agent_opts} ${home}/../libs/postgresql-above9.4.1207-scenario.jar &
+java -jar ${agent_opts} -Dskywalking.plugin.postgresql.trace_sql_parameters=true ${home}/../libs/postgresql-above9.4.1207-scenario.jar &

test/plugin/scenarios/postgresql-above9.4.1207-scenario/config/expectedData.yaml

@@ -53,6 +53,7 @@ segmentItems:
         - {key: "db.type", value: "sql"}
         - {key: "db.instance", value: "postgres"}
         - {key: "db.statement", value: "INSERT INTO test_007(id, value) VALUES(?,?)"}
+        - {key: "db.sql.parameters", value: "[1,1]"}
         startTime: nq 0
         endTime: nq 0
         isError: false