code-graph/api/analyzers/java/analyzer.py at 369df38309b0481327c92952983499a1f8b1085c · FalkorDB/code-graph · GitHub

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import os
from pathlib import Path
import subprocess
from ...entities.entity import Entity
from ...entities.file import File
from typing import Optional
from ..analyzer import AbstractAnalyzer, ResolvedEntityRef
from ...graph import Graph

from multilspy import SyncLanguageServer

import tree_sitter_java as tsjava
from tree_sitter import Language, Node

from xml.etree import ElementTree

import logging
logger = logging.getLogger('code_graph')

class JavaAnalyzer(AbstractAnalyzer):
    def __init__(self) -> None:
        super().__init__(Language(tsjava.language()))

    def add_dependencies(self, path: Path, files: list[Path]):
        # if not Path("java-decompiler-engine-243.23654.153.jar").is_file():
        #     subprocess.run(["wget", "https://www.jetbrains.com/intellij-repository/releases/com/jetbrains/intellij/java/java-decompiler-engine/243.23654.153/java-decompiler-engine-243.23654.153.jar"])
        subprocess.run(["rm", "-rf", f"{path}/temp_deps"])
        pom = ElementTree.parse(str(path) + '/pom.xml')
        for dependency in pom.findall('.//{http://maven.apache.org/POM/4.0.0}dependency'):
            groupId = dependency.find('{http://maven.apache.org/POM/4.0.0}groupId').text.replace('.', '/')
            artifactId = dependency.find('{http://maven.apache.org/POM/4.0.0}artifactId').text
            version = dependency.find('{http://maven.apache.org/POM/4.0.0}version').text
            # jar_path = f"{Path.home()}/.m2/repository/{groupId}/{artifactId}/{version}/{artifactId}-{version}.jar"
            jar_path = f"{Path.home()}/.m2/repository/{groupId}/{artifactId}/{version}/{artifactId}-{version}-sources.jar"

            os.makedirs(f"{path}/temp_deps/{artifactId}-{version}", exist_ok=True)
            # subprocess.run(["java", "-jar", "java-decompiler-engine-243.23654.153.jar", "-hdc=0 -iib=1 -rsy=1 -rbr=1 -dgs=1 -din=1 -den=1 -asc=1 -bsm=1", jar_path, f"{path}/temp_deps/{artifactId}-{version}"])
            subprocess.run(["cp", jar_path, f"{artifactId}-{version}.jar"], cwd=f"{path}/temp_deps/{artifactId}-{version}")
            subprocess.run(["unzip", f"{artifactId}-{version}.jar"], cwd=f"{path}/temp_deps/{artifactId}-{version}")
        files.extend(Path(f"{path}/temp_deps").rglob("*.java"))

    def get_entity_label(self, node: Node) -> str:
        if node.type == 'class_declaration':
            return "Class"
        elif node.type == 'interface_declaration':
            return "Interface"
        elif node.type == 'enum_declaration':
            return "Enum"
        elif node.type == 'method_declaration':
            return "Method"
        elif node.type == 'constructor_declaration':
            return "Constructor"
        raise ValueError(f"Unknown entity type: {node.type}")

    def get_entity_name(self, node: Node) -> str:
        if node.type in ['class_declaration', 'interface_declaration', 'enum_declaration', 'method_declaration', 'constructor_declaration']:
            return node.child_by_field_name('name').text.decode('utf-8')
        raise ValueError(f"Unknown entity type: {node.type}")

    def get_entity_docstring(self, node: Node) -> Optional[str]:
        if node.type in ['class_declaration', 'interface_declaration', 'enum_declaration', 'method_declaration', 'constructor_declaration']:
            if node.prev_sibling.type == "block_comment":
                return node.prev_sibling.text.decode('utf-8')
            return None
        raise ValueError(f"Unknown entity type: {node.type}")

    def get_entity_types(self) -> list[str]:
        return ['class_declaration', 'interface_declaration', 'enum_declaration', 'method_declaration', 'constructor_declaration']

    def add_symbols(self, entity: Entity) -> None:
        if entity.node.type == 'class_declaration':
            interfaces_captures = self._captures("(super_interfaces (type_list (type_identifier) @interface))", entity.node)
            if 'interface' in interfaces_captures:
                for interface in interfaces_captures['interface']:
                    entity.add_symbol("implement_interface", interface)
            base_class_captures = self._captures("(superclass (type_identifier) @base_class)", entity.node)
            if 'base_class' in base_class_captures:
                base_class = base_class_captures['base_class'][0]
                entity.add_symbol("base_class", base_class)
        elif entity.node.type == 'interface_declaration':
            extends_captures = self._captures("(extends_interfaces (type_list (type_identifier) @type))?", entity.node)
            if 'type' in extends_captures:
                for interface in extends_captures['type']:
                    entity.add_symbol("extend_interface", interface)
        elif entity.node.type in ['method_declaration', 'constructor_declaration']:
            captures = self._captures("(method_invocation) @reference.call", entity.node)
            if 'reference.call' in captures:
                for caller in captures['reference.call']:
                    entity.add_symbol("call", caller)
            if entity.node.type == 'method_declaration':
                captures = self._captures("(formal_parameters (formal_parameter type: (_) @parameter))", entity.node)
                if 'parameter' in captures:
                    for parameter in captures['parameter']:
                        entity.add_symbol("parameters", parameter)
                entity.add_symbol("return_type", entity.node.child_by_field_name('type'))

    def is_dependency(self, file_path: str) -> bool:
        return ".jar" in file_path

    def resolve_path(self, file_path: str, path: Path) -> str:
        if ".jar" in file_path:
            args = file_path.replace(".jar", "").replace(".class", ".java").split("/")
            targs = "/".join(["/".join(arg.split(".")) for arg in args[2:-1]])
            return f"{path}/temp_deps/{args[1]}/{targs}/{args[-1]}"
        return file_path

    def resolve_type(self, files: dict[Path, File], lsp: SyncLanguageServer, file_path: Path, path: Path, graph: Graph, node: Node) -> list[Entity | ResolvedEntityRef]:
        return self.resolve_entities(
            files,
            lsp,
            file_path,
            path,
            node,
            graph,
            ['class_declaration', 'interface_declaration', 'enum_declaration'],
            ['Class', 'Interface', 'Enum'],
        )

    def resolve_method(self, files: dict[Path, File], lsp: SyncLanguageServer, file_path: Path, path: Path, graph: Graph, node: Node) -> list[Entity | ResolvedEntityRef]:
        return self.resolve_entities(
            files,
            lsp,
            file_path,
            path,
            node.child_by_field_name('name'),
            graph,
            ['method_declaration', 'constructor_declaration', 'class_declaration', 'interface_declaration', 'enum_declaration'],
            ['Method', 'Constructor'],
            {'class_declaration', 'interface_declaration', 'enum_declaration'},
        )

    def resolve_symbol(self, files: dict[Path, File], lsp: SyncLanguageServer, file_path: Path, path: Path, graph: Graph, key: str, symbol: Node) -> list[Entity | ResolvedEntityRef]:
        if key in ["implement_interface", "base_class", "extend_interface", "parameters", "return_type"]:
            return self.resolve_type(files, lsp, file_path, path, graph, symbol)
        elif key in ["call"]:
            return self.resolve_method(files, lsp, file_path, path, graph, symbol)
        else:
            raise ValueError(f"Unknown key {key}")